Wi-Fi Controlled Device Interface with Wemos D1 Mini and Logic Level Converter
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Circuit Documentation
Summary
This document provides a detailed overview of a circuit that includes a Wemos D1 Mini microcontroller, a Bi-Directional Logic Level Converter, and a +5V RX TX GND module. The circuit is designed to interface the Wemos D1 Mini with other components operating at different voltage levels using the logic level converter.
Component List
Wemos D1 Mini
- Description: A compact microcontroller board based on the ESP8266 WiFi module.
- Pins: RST, A0, D0, D5, D6, D7, D8, 3V3, 5V, G, D4, D3, D2, D1, RX, TX
Bi-Directional Logic Level Converter
- Description: A module used to safely step down 5V signals to 3.3V and step up 3.3V to 5V.
- Pins: HV1, HV2, HV, GND, HV3, HV4, LV1, LV2, LV, LV3, LV4
+5V RX TX GND
- Description: A module providing +5V power, ground, and serial communication pins.
- Pins: GND, +5V, TX, RX
Comment
- Description: A placeholder for comments or notes in the circuit.
- Pins: None
Wiring Details
Wemos D1 Mini
- D7 is connected to LV2 of the Bi-Directional Logic Level Converter.
- D8 is connected to LV1 of the Bi-Directional Logic Level Converter.
- 3V3 is connected to LV of the Bi-Directional Logic Level Converter.
- 5V is connected to HV of the Bi-Directional Logic Level Converter and +5V of the +5V RX TX GND module.
- G is connected to GND of the Bi-Directional Logic Level Converter.
Bi-Directional Logic Level Converter
- LV2 is connected to D7 of the Wemos D1 Mini.
- LV1 is connected to D8 of the Wemos D1 Mini.
- LV is connected to 3V3 of the Wemos D1 Mini.
- HV is connected to 5V of the Wemos D1 Mini and +5V of the +5V RX TX GND module.
- GND is connected to G of the Wemos D1 Mini and GND of the +5V RX TX GND module.
- HV1 is connected to RX of the +5V RX TX GND module.
- HV2 is connected to TX of the +5V RX TX GND module.
+5V RX TX GND
- +5V is connected to 5V of the Wemos D1 Mini and HV of the Bi-Directional Logic Level Converter.
- RX is connected to HV1 of the Bi-Directional Logic Level Converter.
- TX is connected to HV2 of the Bi-Directional Logic Level Converter.
- GND is connected to GND of the Bi-Directional Logic Level Converter.
Code
No code is provided for this circuit.
This document provides a comprehensive overview of the components and their interconnections in the circuit. For further details or modifications, please refer to the specific component datasheets and application notes.