Espressif, the company that makes the ESP-32 chip and its support firmware, is also making modules and development boards to support them. Their module is the ESP-WROOM32, is not just the first module ...

The ESP-01 module based on the ESP8266 is all the rage with IoT folks at the moment – and why not. For about 5 bucks, it can’t be beat on price for the features it offers. The one thing that such ...

My guess is that the price out of the factory for ESP modules is not much more than a few pounds. Presumably there is no real competition for replacement units because of trade restrictions and ...