Pin and connectors
Analog input (pins 34, 35, 36, 39)
Digital input (pins 27, 32)
Really on board 2 (pins 15, 12)
Buzzer pin (0)
ESP32 Reset default settings pin(2)
IR pin(3)
Serieal connector 4pin (+5v, 4, 25, GND)
Modbus Serieal connector 4pin (GND, 16, 17, +5V)
Display 1.3” 4pin (+3v, GND, 22_CL, 21_DA)
CRT connector 5pin (+3v, 21_D, 22_C, NC, GND)
GSM 6pin (RF, +4V, RS_33, RX_14, TX_13, GND)
Ethernet connectors 2x6pin (5, 18, 19, 23, 26)
Modules & components
ESP32 D1
SIM800 GSM
ETHERNET W5500
CRT
DISPLAY OLED 1.3″
RS485 MODBUS
RELAY 5V 5A
EEPROM
BUZZER
CASE DIN RAIL
ESP 32 software
GENERAL
GSM
TRIGGER LINK
TIMERS
SENSORS
IR
MODBAS
IP
BUTTONS
CHARTS
APP