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NodeMCU Lesson 14 — 4-Digit 7 Segment LED Display & MQTT
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Product details
| Management number | 211051497 | Release Date | 2026/04/04 | List Price | US$36.00 | Model Number | 211051497 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
In this tutorial, we'll demonstrate how to employ an MQTT client (MQTTBox) to transmit a numeric MQTT message to NodeMCU. NodeMCU will then subscribe to the relevant publish topic and exhibit the received messages on a 4-digit 7 segment LED display.
- 7-Segment LED Display: 4-Digit
- MQTT Client: Establish Connection
- Display Output: Digital
- Configure WiFi Hotspot
- Set MQTT Server Address
- Publish Topic: OsoyooCommand
- Payload Type: Decimal Array
| Brand | OSOYOO |
|---|---|
| BuiltIn Media | NodeMCU board, 4-digit 7 segment LED display, jumper wires |
| Operating System | FreeRTOS |
| Compatible Devices | jumper wires |
| Wireless Compability | 802.11bgn |
| Connectivity Technology | Wi-Fi |
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