Leading IoT development system now! Very compact, great value for money. Advantages: Light weight. Comes with an OLED battery changer. Wi-Fi and BLE support. dual core. Very attractive price. But the seller made them available later. 2) Check the document before buying 3) The device heats up, consumes 150mA while WiFi is active 4) Pin 25 (GPIO) is used to connect the white LED on the board, in some examples this refers to Pin 5, this needs to be fixed. 5) Few examples on BLE (or no samples from Haltec s/w) 6) Be careful with long firmware runtimes, you can block the board. (Read the GITHUB blogs if you need help)
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