MAX30102

• ESP32 Pin G32 to MAX30102 Pin SCL
• ESP32 Pin G33 to MAX30102 Pin SDA
• ESP32 Pin 3V3 to MAX30102 Pin VCC
• ESP32 Pin GND to MAX30102 Pin GND

SSD1306

• ESP32 Pin G32 to SSD1306 Pin SCL
• ESP32 Pin G33 to SSD1306 Pin SDA
• ESP32 Pin 3V3 to SSD1306 Pin VCC
• ESP32 Pin GND to SSD1306 Pin GND

TP4056

• TP4056 PIN OUT+ to ESP32 Pin V5
• TP4056 PIN OUT- to SWITCH Pin TO SIDE
• SWITCH PIN BETWEEN to ESP32 Pin GND

BATTERY

• BATTERY WIRE(+) to TP4056 Pin B+
• BATTERY WIRE(-) to TP4056 Pin B-