Clones

------------------------------------------------------------------------------

             Collection of settings for various tester models

  Please help other users by emailing settings for clones not listed, and
  also by reporting bad settings.

------------------------------------------------------------------------------

Arduino Nano, Uno or Mega 2560
- Nano/Uno: ATmega 328, 16MHz clock
  Mega 2560: ATmega 2560, 16MHz clock
- Download the Arduino pinout diagram to get the mapping between Arduino and
  ATmega pins.
- The integrated USB2serial adapter makes serial communication simple
  (enable SERIAL_HARDWARE and related options). Don't use the TXD/RXD pins
  for anything else.
- If you want to use Arduino's D13 pin remove the LED circuitry which would
  interfere otherwise.
- only the essential settings are listed

Hardware options:
#define HW_FIXED_SIGNAL_OUTPUT

User interface:
#define UI_AUTOHOLD

Power management:
#define POWER_SWITCH_MANUAL
#define BAT_NONE

Measurement settings and offsets:
#define ADC_LARGE_BUFFER_CAP            /* 100nF cap at AREF */

------------------------------------------------------------------------------

DIY Kit "AY-AT" / GM328A
- ATmega328, 8MHz clock
- ST7735 color LCD module (bit-bang SPI)
- rotary encoder (PD1 & PD3, in parallel with display)
- external 2.5V voltage reference (TL431)
- basic frequency counter with dedicated input (PD4)
- measurement of external voltage up to 45V (PC3)
- settings provided by flywheelz@EEVBlog
- settings for ST7735 semi-compatible display provided by b0hoon4@gmail.com

Hints:
- Some GM328A have an ST7735 semi-compatible display which won't run with the
  standard ST7735 driver. On those modules the level shifter is followed by an
  additional IC (U3). In this case use the Semi-ST7735 driver.

Hardware Options:
#define HW_ENCODER
#define ENCODER_PULSES   4              /* usually 4 pulses per step */
#define ENCODER_STEPS    20             /* usually 20 detents */
#define HW_REF25
#define HW_ZENER
#define HW_FREQ_COUNTER_BASIC

LCD module:
#define LCD_ST7735
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_COLOR                       /* color display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RES          PD0            /* port pin used for /RESX */
#define LCD_CS           PD5            /* port pin used for /CSX (optional) */
#define LCD_DC           PD1            /* port pin used for D/CX */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SDA          PD3            /* port pin used for SDA */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       160            /* number of vertical dots */
//#define LCD_OFFSET_X     4              /* enable x offset of 2 or 4 dots */
//#define LCD_OFFSET_Y     2              /* enable y offset of 1 or 2 dots */
#define LCD_FLIP_X                      /* enable horizontal flip */
//#define LCD_FLIP_Y                      /* enable vertical flip */
#define LCD_ROTATE                      /* switch X and Y (rotate by 90°) */
//#define LCD_LATE_ON                     /* turn on LCD after clearing it */
#define FONT_10X16_HF                   /* 10x16 font */
#define SYMBOLS_24X24_HF                /* 24x24 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SDA        /* port pin used for MOSI */

If you prefer that the tester starts with a cleared display uncomment
LCD_LATE_ON.

For the ST7735 semi-compatible display use:
#define LCD_SEMI_ST7735
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_COLOR                       /* color display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RES          PD0            /* port pin used for /RESX */
#define LCD_CS           PD5            /* port pin used for /CSX (optional) */
#define LCD_DC           PD1            /* port pin used for D/CX */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SDA          PD3            /* port pin used for SDA */
#define LCD_DOTS_X       160            /* number of horizontal dots */
#define LCD_DOTS_Y       128            /* number of vertical dots */
#define LCD_LATE_ON                     /* turn on LCD after clearing it */
#define FONT_8X8_HF                     /* 8x8 font */
#define SYMBOLS_30X32_HF                /* 30x32 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SDA        /* port pin used for MOSI */

Rotary Encoder:
#define ENCODER_PORT     PORTD     /* port data register */
#define ENCODER_DDR      DDRD      /* port data direction register */
#define ENCODER_PIN      PIND      /* port input pins register */
#define ENCODER_A        PD3       /* rotary encoder A signal */
#define ENCODER_B        PD1       /* rotary encoder B signal */

Input for the frequency counter is PD4 (T0).


Inductance compensation offsets for 20MHz model
- provided by indman@EEVBlog
- edit the section for high current mode in function MeasureInductor()
  in inductor.c

      #if CPU_FREQ == 20000000
      /* 20 MHz */
      if (Temp < 1500)        /* < 1.5µs / < 100µH */
      {
        Offset = -10;
      }
      else if (Temp < 5000)   /* 1.5-5µs / 100-330µH */
      {
        Offset = -10; 
      }
      else                    /* > 5µs / > 330µH */
      {
        Offset = -30;
      }
      #endif


------------------------------------------------------------------------------

BSide ESR02 (DTU-1701)
- ATmega 328, 8MHz clock
- ST7565 display (bit-bang SPI)
- external 2.5V voltage reference (TL431)
- settings provided by indman@EEVblog

Hardware Options:
#define HW_REF25

Power management:
#define BAT_DIVIDER
#define BAT_EXT_UNMONITORED
#define BAT_R1           47000
#define BAT_R2           47000
#define BAT_OFFSET       420

LCD module:
#define LCD_ST7565R                     /* display controller ST7565R */
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RESET        PD0            /* port pin used for /RES (optional) */
#define LCD_A0           PD1            /* port pin used for A0 */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SI           PD3            /* port pin used for SI (LCD's data input) */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       64             /* number of vertical dots */
#define LCD_OFFSET_X                    /* enable x offset of 4 dots */
#define LCD_FLIP_X                      /* enable horizontal flip */
#define LCD_FLIP_Y                      /* enable vertical flip */
#define LCD_START_Y      0              /* start line (0-63) */
#define LCD_CONTRAST     15             /* default contrast (0-63) */
#define FONT_8X8_VF                     /* 8x8 font */
#define SYMBOLS_24X24_VFP               /* 24x24 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SI         /* port pin used for MOSI */

------------------------------------------------------------------------------

Fish8840 TFT
- ATmega328, 8MHz clock
- ST7735 color display (bit-bang SPI)
- external 2.5V voltage reference (TL431)
- settings provided by indman@EEVBlog / bdk100@vrtp.ru

LCD module:
#define LCD_ST7735
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_COLOR                       /* color display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RES          PD3            /* port pin used for /RESX (optional) */
//#define LCD_CS           PD5            /* port pin used for /CSX (optional) */
#define LCD_DC           PD2            /* port pin used for D/CX */
#define LCD_SCL          PD0            /* port pin used for SCL */
#define LCD_SDA          PD1            /* port pin used for SDA */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       156            /* number of vertical dots */
#define LCD_OFFSET_X                    /* enable x offset of 4 dots */
#define LCD_OFFSET_Y                    /* enable y offset of 2 dots */
#define LCD_FLIP_X                      /* enable horizontal flip */
//#define LCD_FLIP_Y                      /* enable vertical flip */
#define LCD_ROTATE                      /* switch X and Y (rotate by 90°) */
#define LCD_LATE_ON                     /* turn on LCD after clearing it */
#define FONT_10X16_HF                   /* 10x16 font */
#define SYMBOLS_30X32_HF                /* 30x32 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SDA        /* port pin used for MOSI */

------------------------------------------------------------------------------

GM328
- ATmega328, 8MHz clock
- ST7565 display (bit-bang SPI)
- settings provided by rddube@EEVblog

LCD module:
#define LCD_ST7565R
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RESET        PD0            /* port pin used for /RES (optional) */
#define LCD_A0           PD1            /* port pin used for A0 */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SI           PD3            /* port pin used for SI (LCD's data input) */
#define LCD_CS           PD5            /* port pin used for /CS1 (optional) */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       64             /* number of vertical dots */
#define LCD_START_Y      0              /* start line (0-63) */
#define LCD_CONTRAST     11             /* default contrast (0-63) */
#define FONT_8X8_VF                     /* 8x8 font */
#define SYMBOLS_24X24_VFP               /* 24x24 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SI         /* port pin used for MOSI */

------------------------------------------------------------------------------

Hiland M644
- ATmega 644, 8MHz clock
- ST7565 display (bit-bang SPI)
- rotary encoder (PB7 & PB5, in parallel with display)
- external 2.5V voltage reference (TL431)
- boost converter for Zener check
- extended frequency counter
  (but no input buffer stage for direct frequency measurement) 
- fixed adjustment cap
  (in case of problems replace MLCC with 220nF film cap)
- settings provided by Horst O. (obelix2007@mikrocontroller.net)

Hardware Options:
#define HW_ENCODER
#define ENCODER_PULSES   4              /* 4 */
#define HW_REF25
#define HW_ZENER
#define HW_FREQ_COUNTER_EXT
#define FREQ_COUNTER_PRESCALER     16   /* 16:1 */
#define HW_ADJUST_CAP

Workarounds:
#define NO_HFE_C_RL                     /* if hFE values too high */

LCD module:
#define LCD_ST7565R
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTB          /* port data register */
#define LCD_DDR          DDRB           /* port data direction register */
#define LCD_RESET        PB4            /* port pin used for /RES (optional) */
//#define LCD_CS           PB2            /* port pin used for /CS1 (optional) */
#define LCD_A0           PB5            /* port pin used for A0 */
#define LCD_SCL          PB6            /* port pin used for SCL */
#define LCD_SI           PB7            /* port pin used for SI (LCD's data input) */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       64             /* number of vertical dots */
//#define LCD_OFFSET_X                  /* enable x offset of 4 dots */
//#define LCD_FLIP_X                      /* enable horizontal flip */
#define LCD_FLIP_Y                      /* enable vertical flip */
#define LCD_START_Y      0              /* start line (0-63) */
#define LCD_CONTRAST     3              /* default contrast (0-63) */
#define FONT_8X8_VF                     /* 8x8 font */
#define SYMBOLS_24X24_VFP               /* 24x24 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SI         /* port pin used for MOSI */

Pinout for test probes (matches defaults):
#define TP_ZENER         PA3       /* test pin with 10:1 voltage divider */
#define TP_REF           PA4       /* test pin with 2.5V reference */
#define TP_BAT           PA5       /* test pin with 4:1 voltage divider */
#define TP_CAP           PA7       /* test pin for self-adjustment cap */

Pinout for probe resistors (matches defaults):
#define R_PORT           PORTD     /* port data register */
#define R_DDR            DDRD      /* port data direction register */
#define R_RL_1           PD2       /* Rl (680R) for test pin #1 */
#define R_RH_1           PD3       /* Rh (470k) for test pin #1 */
#define R_RL_2           PD4       /* Rl (680R) for test pin #2 */
#define R_RH_2           PD5       /* Rh (470k) for test pin #2 */
#define R_RL_3           PD6       /* Rl (680R) for test pin #3 */
#define R_RH_3           PD7       /* Rh (470k) for test pin #3 */

Pinout for power control:
#define POWER_PORT       PORTB     /* port data register */
#define POWER_DDR        DDRB      /* port data direction register */
#define POWER_CTRL       PB1       /* controls power (1: on / 0: off) */

Pinout for test button (matches defaults):
#define BUTTON_PORT      PORTC     /* port data register */
#define BUTTON_DDR       DDRC      /* port data direction register */
#define BUTTON_PIN       PINC      /* port input pins register */
#define TEST_BUTTON      PC7       /* test/start push button (low active) */

Rotary Encoder:
#define ENCODER_PORT     PORTB     /* port data register */
#define ENCODER_DDR      DDRB      /* port data direction register */
#define ENCODER_PIN      PINB      /* port input pins register */
#define ENCODER_A        PB5       /* rotary encoder A signal */
#define ENCODER_B        PB7       /* rotary encoder B signal */

Pinout for extended frequency counter (matches defaults):
#define COUNTER_PORT          PORTB     /* port data register */
#define COUNTER_DDR           DDRB      /* port data direction register */
#define COUNTER_IN            PB0       /* signal input T0 */
#define COUNTER_CTRL_PORT     PORTC     /* port data register */ 
#define COUNTER_CTRL_DDR      DDRC      /* port data direction register */
#define COUNTER_CTRL_DIV      PC0       /* prescaler */
#define COUNTER_CTRL_CH0      PC1       /* channel addr #0 */
#define COUNTER_CTRL_CH1      PC2       /* channel addr #1 */

Pinout for fixed cap for self-adjustment:
#define ADJUST_PORT      PORTC     /* port data register */
#define ADJUST_DDR       DDRC      /* port data direction register */
#define ADJUST_RH        PC6       /* Rh (470k) for fixed cap */

------------------------------------------------------------------------------

M12864 DIY Transistor Tester
- ATmega328, 8MHz clock
- ST7565 display (bit-bang SPI)
- rotary encoder (PD1 & PD3, in parallel with display)
- external 2.5V voltage reference (TL431)

Hardware Options:
#define HW_ENCODER
#define ENCODER_PULSES   4         /* not confirmed yet, could be also 2 */
#define ENCODER_STEPS    24        /* not confirmed yet */
#define HW_REF25

LCD module:
#define LCD_ST7565R
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RESET        PD0            /* port pin used for /RES */
#define LCD_A0           PD1            /* port pin used for A0 */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SI           PD3            /* port pin used for SI (LCD's data input) */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       64             /* number of vertical dots */
//#define LCD_OFFSET_X                    /* enable x offset of 4 dots */
#define LCD_FLIP_Y                      /* enable vertical flip */
#define LCD_START_Y      0              /* start line (0-63) */
#define LCD_CONTRAST     11             /* default contrast (0-63) */
#define FONT_8X8_VF                     /* 8x8 font */
#define SYMBOLS_24X24_VFP               /* 24x24 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SI         /* port pin used for MOSI */

Rotary Encoder:
#define ENCODER_PORT     PORTD     /* port data register */
#define ENCODER_DDR      DDRD      /* port data direction register */
#define ENCODER_PIN      PIND      /* port input pins register */
#define ENCODER_A        PD3       /* rotary encoder A signal */
#define ENCODER_B        PD1       /* rotary encoder B signal */

------------------------------------------------------------------------------

MK-328
- ATmega328, 8MHz clock
- ST7565 display (bit-bang SPI)
- external 2.5V voltage reference (TL431)
- settings provided by brunosso@EEVblog and confirmed by Peeps@EEVblog

Hardware Options:
#define HW_REF25

LCD module:
#define LCD_ST7565R
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RESET        PD0            /* port pin used for /RES (optional) */
#define LCD_CS           PD5            /* port pin used for /CS1 (optional) */
#define LCD_A0           PD1            /* port pin used for A0 */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SI           PD3            /* port pin used for SI (LCD's data input) */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       64             /* number of vertical dots */
#define LCD_START_Y      0              /* start line (0-63) */
#define LCD_CONTRAST     11             /* default contrast (0-63) */
#define FONT_8X8_VF                     /* 8x8 font */
#define SYMBOLS_24X24_VFP               /* 24x24 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SI         /* port pin used for MOSI */

------------------------------------------------------------------------------

T3/T4
- ATmega328, 8MHz clock
- ST7565 display (bit-bang SPI)
- settings provided by tom666@EEVblog
- LCD_RESET could be also PD0

LCD module:
#define LCD_ST7565R
#define LCD_GRAPHIC                     /* graphic display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTD          /* port data register */
#define LCD_DDR          DDRD           /* port data direction register */
#define LCD_RESET        PD4            /* port pin used for /RES */
#define LCD_A0           PD3            /* port pin used for A0 */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SI           PD1            /* port pin used for SI (LCD's data input) */
#define LCD_CS           PD5            /* port pin used for /CS1 (optional) */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       64             /* number of vertical dots */
#define LCD_START_Y      0              /* start line (0-63) */
#define LCD_CONTRAST     11             /* default contrast (0-63) */
#define FONT_8X8_VF                     /* 8x8 font */
#define SYMBOLS_24X24_VFP               /* 24x24 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SI         /* port pin used for MOSI */

Some T4 variants use a slightly different pin assignment:
#define LCD_RESET        PD0            /* port pin used for /RES */
#define LCD_A0           PD1            /* port pin used for A0 */
#define LCD_SCL          PD2            /* port pin used for SCL */
#define LCD_SI           PD3            /* port pin used for SI (LCD's data input) */
#define LCD_CS           PD5            /* port pin used for /CS1 (optional) */

------------------------------------------------------------------------------

Multifunction Tester TC-1 and family (T7)
- ATmega324 (very poor pin assignment), 16MHz clock
  later models may have an ATmega644
- ST7735 color display (bit-bang SPI)
- external 2.5V voltage reference (TL431)
- fixed IR receiver module
- boost converter for Zener check
  (runs all the time, non-standard voltage divider 100k/12k)
- fixed adjustment cap
  (in case of problems replace MLCC with 220nF film cap)
- powered by Li-Ion cell 3.7V
- sample testers provided by jellytot@EEVblog and joystik@EEVblog
- initial information provided by indman@EEVblog

Hints:
- Control MCU U4 (STC15L104W) needs to be replaced with a simple two-transistor
  circuit (TC1-Mod, see source repository for TC1-Mod.kicad.tgz, 5µA standby
  current in total) or reprogrammed with a modified firmware (see
  https://github.com/atar-axis/tc1-u4). The designator can be also U3 (T7 Plus)
  or U5 for newer PCBs. 
- Set extended fuse byte to 0xfd (brown-out detection).
- If D2 (rectifier diode for Zener test voltage) gets hot replace it with a
  Schottky diode rated for 80V reverse voltage or higher, e.g. SS18.
- Replace C11 and C12 (filter caps for Zener test voltage) with a 10 or 22µF
  low-ESR electrolytic cap rated for 100V or higher because of the MLCC DC
  bias capacitance derating issue.
- Based on the LCD module used you might have to set LCD_FLIP_X instead of
  LCD_FLIP_Y.
- The TC-1 can't provide signal output (PWM/squarewave/etc.) on probe #2. Use
  PD4 (OC1B) as dedicated signal output (add a resistor to limit current) and
  enable HW_FIXED_SIGNAL_OUTPUT in config.h.
- If you like to add a rotary encoder or in/decrease buttons please use
  PB5 (display's D/C) and PB6 (display's SDA).
- You can also get the frequency counter by using PB0 (T0) as input und
  adding a simple input stage.
- PD0 solder bridge (open: pull-up, shorted: Gnd, unused by m-firmware)

Hardware Options:
#define HW_REF25
#define HW_ZENER
#define ZENER_DIVIDER_CUSTOM
#define ZENER_R1         100000
#define ZENER_R2         12000
#define ZENER_UNSWITCHED
#define HW_IR_RECEIVER
#define HW_ADJUST_CAP

Optionally:
#define HW_PROBE_ZENER
#define ZENER_VOLTAGE_MIN     1000      /* min. voltage in mV */
#define ZENER_VOLTAGE_MAX     40000     /* max. voltage in mV */

Power management settings:
#define BAT_DIRECT
#define BAT_OFFSET       0
#define BAT_WEAK         3600
#define BAT_LOW          3400

LCD module:
#define LCD_ST7735
#define LCD_COLOR                       /* color graphic display */
#define LCD_SPI                         /* SPI interface */
#define LCD_PORT         PORTB          /* port data register */
#define LCD_DDR          DDRB           /* port data direction register */
#define LCD_RES          PB4            /* port pin used for /RESX (optional) */
//#define LCD_CS           PB?            /* port pin used for /CSX (optional) */
#define LCD_DC           PB5            /* port pin used for D/CX */
#define LCD_SCL          PB7            /* port pin used for SCL */
#define LCD_SDA          PB6            /* port pin used for SDA */
#define LCD_DOTS_X       128            /* number of horizontal dots */
#define LCD_DOTS_Y       160            /* number of vertical dots */
#define LCD_OFFSET_X     2              /* enable x offset of 2 or 4 dots */
#define LCD_OFFSET_Y     1              /* enable y offset of 1 or 2 dots */
//#define LCD_FLIP_X                      /* enable horizontal flip */
#define LCD_FLIP_Y                      /* enable vertical flip */
#define LCD_ROTATE                      /* switch X and Y (rotate by 90°) */
#define LCD_LATE_ON                     /* turn on LCD after clearing it */
#define FONT_10X16_HF                   /* 10x16 font */
#define SYMBOLS_30X32_HF                /* 30x32 symbols */
#define SPI_BITBANG                     /* bit-bang SPI */
#define SPI_PORT         LCD_PORT       /* SPI port data register */
#define SPI_DDR          LCD_DDR        /* SPI port data direction register */
#define SPI_SCK          LCD_SCL        /* port pin used for SCK */
#define SPI_MOSI         LCD_SDA        /* port pin used for MOSI */

Pinout for test probes:
#define TP_ZENER         PA4       /* test pin with 10:1 voltage divider */
#define TP_REF           PA3       /* test pin with 2.5V reference */
#define TP_BAT           PA5       /* test pin with 4:1 voltage divider */
#define TP_CAP           PA7       /* test pin for self-adjustment cap */

Pinout for probe resistors:
#define R_PORT           PORTC     /* port data register */
#define R_DDR            DDRC      /* port data direction register */
#define R_RL_1           PC0       /* Rl (680R) for test pin #1 */
#define R_RH_1           PC1       /* Rh (470k) for test pin #1 */
#define R_RL_2           PC2       /* Rl (680R) for test pin #2 */
#define R_RH_2           PC3       /* Rh (470k) for test pin #2 */
#define R_RL_3           PC4       /* Rl (680R) for test pin #3 */
#define R_RH_3           PC5       /* Rh (470k) for test pin #3 */

Pinout for power control:
#define POWER_PORT       PORTD     /* port data register */
#define POWER_DDR        DDRD      /* port data direction register */
#define POWER_CTRL       PD2       /* controls power (1: on / 0: off) */

Pinout for test button:
#define BUTTON_PORT      PORTD     /* port data register */
#define BUTTON_DDR       DDRD      /* port data direction register */
#define BUTTON_PIN       PIND      /* port input pins register */
#define TEST_BUTTON      PD1       /* test/start push button (low active) */

Pinout for fixed IR detector/decoder:
#define IR_PORT          PORTD     /* port data register */
#define IR_DDR           DDRD      /* port data direction register */
#define IR_PIN           PIND      /* port input pins register */
#define IR_DATA          PD3       /* data signal */

Pinout for fixed cap for self-adjustment:
#define ADJUST_PORT      PORTC     /* port data register */
#define ADJUST_DDR       DDRC      /* port data direction register */
#define ADJUST_RH        PC6       /* Rh (470k) for fixed cap */

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