Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes a Seeed Studio nRF52840 microcontroller, a MAX30205 temperature sensor, an AD8232 heart rate monitor, and a Polymer Lithium Ion Battery. The document includes a component list, wiring details, and the embedded code used in the microcontroller.

Component List

Seeed Studio nRF52840

• Description: A versatile microcontroller with Bluetooth capabilities.
• Pins: VUSB, GND, 3V3, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, NFC1, NFC2, B-, B+

MAX30205

• Description: A temperature sensor with I2C interface.
• Pins: VCC, GND, SDA, SCL, OS, A0, A1, A2

AD8232 Heart Rate Monitor

• Description: A heart rate monitor sensor.
• Pins: GND, 3.3v, OUTPUT, LO-, LO+, SDN, RA, LA, RL

Polymer Lithium Ion Battery - Generic

• Description: A generic lithium-ion battery.
• Pins: GND, VCC

Wiring Details

Seeed Studio nRF52840

• VUSB connected to VCC of Polymer Lithium Ion Battery
• GND connected to:
  • GND of MAX30205
  • GND of AD8232 Heart Rate Monitor
  • GND of Polymer Lithium Ion Battery
• 3V3 connected to:
  • VCC of MAX30205
  • 3.3v of AD8232 Heart Rate Monitor
• Pin 6 connected to SCL of MAX30205
• Pin 4 connected to SDA of MAX30205
• Pin 3 connected to OS of MAX30205
• Pin 0 connected to OUTPUT of AD8232 Heart Rate Monitor

MAX30205

• GND connected to GND of Seeed Studio nRF52840
• VCC connected to 3V3 of Seeed Studio nRF52840
• SCL connected to Pin 6 of Seeed Studio nRF52840
• SDA connected to Pin 4 of Seeed Studio nRF52840
• OS connected to Pin 3 of Seeed Studio nRF52840

AD8232 Heart Rate Monitor

• GND connected to GND of Seeed Studio nRF52840
• 3.3v connected to 3V3 of Seeed Studio nRF52840
• OUTPUT connected to Pin 0 of Seeed Studio nRF52840

Polymer Lithium Ion Battery - Generic

• VCC connected to VUSB of Seeed Studio nRF52840
• GND connected to GND of Seeed Studio nRF52840

Code Documentation

Seeed Studio nRF52840

sketch.ino

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

documentation.txt

This document provides a comprehensive overview of the circuit, including the components used, their wiring details, and the embedded code for the microcontroller.