CommSat refers to a satellite prototype consisting solar powered battery, temperature, pressure, humidity and acceleration sensors to mimick the action of satellite communication prototypes.
PIN CONNECTIONS
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ESP32 & SENSOR/MODULE CONNECTIONS
Sensor/Module: Pressure Sensor
Sensor Name: BMP280
Interface: I2C
Connections:
SDA -> GPIO21
SCL -> GPIO22
Sensor/Module: Temperature & Humidity
Sensor Name: DHT11
Interface: Digital
Connections:
Data -> GPIO4
Sensor/Module: Accelerometer
Sensor Name: ADXL345
Interface: I2C
Connections:
SDA -> GPIO21
SCL -> GPIO22
Sensor/Module: ESP-NOW Communication
Sensor Name: ESP32 Wireless
Interface: --
Connections: No pins required
Sensor/Module: Power Input to ESP32
Source: From Boost Converter
Interface: --
Connections:
VIN -> 5V output
GND -> GND
POWER SYSTEM CONNECTIONS
Component: Solar Panel
Pin: + (Vout) -> Connected To: TP4056 IN+
Pin: - (GND) -> Connected To: TP4056 IN-
Component: TP4056
Pin: BAT+ -> Connected To: Li-ion Battery + (positive terminal)
Pin: BAT- -> Connected To: Li-ion Battery – (negative terminal)
Pin: OUT+ -> Connected To: MT3608 VIN+
Pin: OUT- -> Connected To: MT3608 VIN-
Component: MT3608
Pin: VOUT+ -> Connected To: ESP32 VIN (or 5V input pin)
Pin: VOUT- -> Connected To: ESP32 GND
Component: ESP32 Module
Pin: VIN -> Connected To: MT3608 VOUT+
Pin: GND -> Connected To: MT3608 VOUT-