Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an ESP8266 NodeMCU microcontroller, a 0.96" OLED display, and an RYLR896 LoRa module. The document includes a list of components, wiring details, and code documentation.

Component List

ESP8266 NodeMCU

• Description: A low-cost Wi-Fi microcontroller with GPIO, PWM, ADC, I2C, and UART capabilities.
• Pins: D0, D1, D2, D3, D4, 3V3, GND, D5, D6, D7, D8, RX, TX, A0, RSV, SD3, SD2, SD1, CMD, SD0, CLK, EN, RST, VIN

0.96" OLED

• Description: A small OLED display module with I2C interface.
• Pins: GND, VDD, SCK, SDA

RYLR896

• Description: A LoRa module for long-range communication.
• Pins: VDD, NRST, RXD, TXD, GND

Wiring Details

ESP8266 NodeMCU

• D1: Connected to SCK of 0.96" OLED
• D2: Connected to SDA of 0.96" OLED
• RX: Connected to TXD of RYLR896
• TX: Connected to RXD of RYLR896
• GND: Connected to GND of 0.96" OLED and GND of RYLR896
• 3V3: Connected to VDD of 0.96" OLED and VDD of RYLR896

0.96" OLED

• GND: Connected to GND of ESP8266 NodeMCU
• VDD: Connected to 3V3 of ESP8266 NodeMCU
• SCK: Connected to D1 of ESP8266 NodeMCU
• SDA: Connected to D2 of ESP8266 NodeMCU

RYLR896

• GND: Connected to GND of ESP8266 NodeMCU
• VDD: Connected to 3V3 of ESP8266 NodeMCU
• TXD: Connected to RX of ESP8266 NodeMCU
• RXD: Connected to TX of ESP8266 NodeMCU

Code Documentation

No code is provided for this circuit.

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This document provides a comprehensive overview of the circuit, including the components used and their interconnections. This should serve as a useful reference for understanding and replicating the circuit.