Topics created by franz-unix

@skywatch Thnaks! The main goal of this board is to offer a simple way to build any kind (RFM69 and NRF24 support, MYSX connector) of compact battery powered node. Today I have finished the first node based on this board: a door window sensor (reed switch). If someone is interested, here the detailed build instructions. The next node based on this board will be a soil moisture sensor!

@mickey Yes you can drive the motor directly from the esp32-cam module, but with MySensors you can put in deep sleep and wake up the esp32 on demand (pir, timer, etc...) for eample with an automation managed by the controller. In fact the esp32-cam, at least with the esphome firmware, is always active and the module become hot after few minutes. With an additional controller more power friendly you can turn on the module only when necessary.

One Last (boring ) question... Have you placed a flyback diode across the inductor? I'm not sure if this component is strictly necessary.

Found a solution! It is quite easy with the custom board features of PlatformIO. I wrote a brief tutorial here. Tested with a Pro Mini 8 MHz 3.3V and FTDI programmer. Unfortunately I don't have here a 16 MHz 5V devices to test

@tbowmo Thank you for your effort! Now my turn... the whole schematics of the d-diot board is available for download here! Of course I have to learn more and do some testing before implementing in the d-diot board the constant current source circuit that you suggested, but this a great option to eliminate the MP1584 (that one day may become unavailable on the market) and to lowering the cost. For the same reasons my plan is to substitute the step up module MT3608 with a boost converter circuit, made from standard passive components (like this). In any case, if someone else needs to make an universal IR remote with a Raspberry Pi, the configuration of the GPIO pins of the Raspberry is here, while the steps necessary to configure LIRC and lirc_web are here. The final results is this: Here the guides to play with the IR gateway (add a remote, clone a remote, Home Assistant integration)

And... after a while and some googling & Kicad learning, I have designed my first pcb. Below the final result At the moment it is not tested but after that if someone is interested I can share it in openhardware. Below the schematic Any suggestion / improvement / comment is well appreciated.