M5StickC DCF77 HAT

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M5StickC DCF77 HAT Basic hat implementation of a DCF77 receiver for M5StickC-Plus or compatible ESP32 devices. Device The current firmware was tested on 77.5KHZ single frequency device. It is the 4 pins version and it was bought here in Aliexpress (https://www.aliexpress.com/item/1005005254051736.html). Wiring | M5StickC pin | DCF77 pin | Description | |:----:|:----:|:-------------| | 0 | P | PON: Enable/Disable | | 26 | T | Interrupt pin or data | | 3.3v | VDD | Positive (3.3v) | | GND | GND | Ground / unlabeled pin | Usage Some tips for this working: x] check the right device. Some devices has different frequencies for each country. [x] Try to remove the device from any radio or wireless interference or noise. The radio is very susceptible to noise. [x] In indoors works, but is possible that in some builds doesn't. Try in outdoors first [x] the position of the device for me was important, in horizontal is possible that it works better Firmware Details in Github (https://github.com/hpsaturn/m5stickc-dcf77-hat#readme) Box Is a basic box - hat for these devices, for example M5StickC or M5StickC-Plus, also should be work in M5CoreInk device.