NodeMCU IOT Kit Lesson 14: 4 Digit 7 Segment LED Display & MQTT
In this lesson, we will show how to use a MQTT client(MQTTBox here) to send a digit MQTT message to NodeMCU. NodeMCU will subscribe to corrsponding publish topic and display the subscription messages on a 4-digit 7 segment LED device. https://www.amazon.co.uk/dp/B01N1XBXTZ https://www.amazon.com/dp/B073Z84243/ref=olp_product_details?_encoding=UTF8&me=
In this lesson, we will show how to use a MQTT client(MQTTBox here) to send a digit MQTT message to NodeMCU. NodeMCU will subscribe to corrsponding publish topic and display the subscription messages on a 4-digit 7 segment LED device. https://www.amazon.co.uk/dp/B01N1XBXTZ https://www.amazon.com/dp/B073Z84243/ref=olp_product_details?_encoding=UTF8&me=