Circuit Documentation
Summary
This document provides a detailed overview of a circuit that includes an OLED display, a heart pulse sensor, and a NodeMCU V3 ESP8266 microcontroller. The circuit is designed to read heart pulse data from the sensor and display it on the OLED screen. The NodeMCU V3 ESP8266 serves as the central microcontroller, handling data acquisition and display.
Component List
OLED 1.3"
- Description: A 1.3-inch OLED display module.
- Pins: GND, VCC, SCL, SDA
Heart Pulse Sensor
- Description: A sensor module for detecting heart pulse.
- Pins: GND, VCC, SIGNAL
NodeMCU V3 ESP8266
- Description: A development board featuring the ESP8266 Wi-Fi module.
- Pins: A0, GND, VU, S3, S2, S1, SC, S0, SK, 3V3, EN, RST, Vin, D0, D1, D2, D3, D4, D5, D6, D7, D8, RX, TX
Wiring Details
OLED 1.3"
- GND: Connected to NodeMCU V3 ESP8266 GND
- VCC: Connected to NodeMCU V3 ESP8266 3V3
- SCL: Connected to NodeMCU V3 ESP8266 D1
- SDA: Connected to NodeMCU V3 ESP8266 D2
Heart Pulse Sensor
- GND: Connected to NodeMCU V3 ESP8266 GND
- VCC: Connected to NodeMCU V3 ESP8266 3V3
- SIGNAL: Connected to NodeMCU V3 ESP8266 A0
NodeMCU V3 ESP8266
- A0: Connected to Heart Pulse Sensor SIGNAL
- GND: Connected to Heart Pulse Sensor GND and OLED 1.3" GND
- 3V3: Connected to Heart Pulse Sensor VCC and OLED 1.3" VCC
- D1: Connected to OLED 1.3" SCL
- D2: Connected to OLED 1.3" SDA
Code
No code is provided for this circuit.
This document provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and a section for code documentation. This should serve as a useful reference for understanding and replicating the circuit.