Circuit Documentation

Summary

This circuit involves an ESP8266 NodeMCU microcontroller, a 0.96" OLED display, and two LEDs (one red and one green) with associated resistors. The ESP8266 NodeMCU controls the OLED display and the LEDs. The resistors are used to limit the current through the LEDs.

Component List

1. ESP8266 NodeMCU

   • Description: A low-cost Wi-Fi microcontroller with GPIO, PWM, ADC, and more.
   • 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

2. 0.96" OLED

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

3. LED: Two Pin (red)

   • Description: A red LED.
   • Pins: cathode, anode

4. LED: Two Pin (green)

   • Description: A green LED.
   • Pins: cathode, anode

5. Resistor (500 Ohms)

   • Description: A resistor with a resistance of 500 Ohms.
   • Pins: pin1, pin2

6. Resistor (500 Ohms)

   • Description: A resistor with a resistance of 500 Ohms.
   • Pins: pin1, pin2

Wiring Details

ESP8266 NodeMCU

• D1 is connected to SCK of the 0.96" OLED.
• D2 is connected to SDA of the 0.96" OLED.
• D3 is connected to the anode of the green LED.
• D4 is connected to the anode of the red LED.
• 3V3 is connected to VDD of the 0.96" OLED.
• GND is connected to GND of the 0.96" OLED.
• GND is connected to pin1 of both resistors.

0.96" OLED

• SCK is connected to D1 of the ESP8266 NodeMCU.
• SDA is connected to D2 of the ESP8266 NodeMCU.
• VDD is connected to 3V3 of the ESP8266 NodeMCU.
• GND is connected to GND of the ESP8266 NodeMCU.

LED: Two Pin (red)

• anode is connected to D4 of the ESP8266 NodeMCU.
• cathode is connected to pin2 of one of the resistors.

LED: Two Pin (green)

• anode is connected to D3 of the ESP8266 NodeMCU.
• cathode is connected to pin2 of the other resistor.

Resistor (500 Ohms)

• pin1 is connected to GND of the ESP8266 NodeMCU.
• pin2 is connected to the cathode of the red LED.

Resistor (500 Ohms)

• pin1 is connected to GND of the ESP8266 NodeMCU.
• pin2 is connected to the cathode of the green LED.

Code

There is no code provided for this circuit.