The PCB for the DIY_ESP32_Marauder-Cheapskate version ... it would look like as a 'One whole assembly' together with the TFT display (which most times is also RED). 1.- Plug your ESP32 to your ...
Safe Home Ultimate DIY Water Test Kit - $30 The Safe Home Ultimate Drinking Water Kit offers 25 tests for each of the following parameters: Total Chlorine, Free Chlorine, Hardness, Alkalinity ...