Topic

bluetooth

A collection of 3 issues

Bluetooth Low Energy sensor, part 2

To continue from part 1 [https://blog.dan.drown.org/bluetooth-low-energy-sensor/]: I want a wireless sensor that will last more than a month on 2x rechargeable AA or AAA batteries. Some ideas I have for what I could do with such a sensor: * indoor/outdoor temperature/humidity sensor * garage door

Bluetooth Low Energy sensor

I have some ideas for a low power wireless sensor. I want something that will last more than a month on 2x rechargeable AA or AAA batteries. I first tried an esp8266 and then an esp32, but the boards I have all use 3-7mA in "deep sleep". This

BLE: micro:bit UART

Experimenting with the micro:bit's Bluetooth UART support. This will explore the lower level guts of how Nordic's Bluetooth Low Energy UARTs work. There are tools to make this easier and less full of guts, but they hide the details. Device one: micro:bit, code: https: