FemtoBeacon ESP32 coin

Details

This is a dime sized (9mm radius, 18mm diameter!) WiFi/Bluetooth 4.2 coin! The onboard LDO regulator can accept up to 5.5V, and supplies 3.3V to the coin. Available pins: UART, SPI. Includes onboard RGB LED, a push button (Boot button), and headers.

Uses a Molex 2.4GHz omnidirectional antenna.

Project Logs

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MicroPython now supported on the FemtoBeacon ESP32 (ESP32-D2WD)
femtoduino • 08/07/2019 at 20:43 • 0 comments

https://github.com/micropython/micropython/issues/4986
Thanks to a ton of community support, I've managed to get MicroPython working on the ESP32-D2WD, which only has 2MiB of internal SPI flash.
Have a look at my official pull request!
Small Batch on Tindie
femtoduino • 05/01/2019 at 18:42 • 0 comments

I'm in the process of getting a small batch of coins fabricated. They will be available on Tindie shortly. In the meantime, maybe add yourself to the wish list? https://www.tindie.com/products/femtoduino/femtobeacon-esp32-d2wd-wifibluetooth-coin/
Initial prototype complete!
femtoduino • 04/27/2019 at 09:24 • 1 comment

I've tested the wireless functionality of my FemtoBeacon ESP32-D2WD coin. WiFi and Bluetooth pass with flying colors. Ready to order a medium run of @oshpark PCBs. Parts are ordered, and a quote request has been submitted to Small Batch Assembly for the first batch of 100 coins.