AirLift Bitsy 애드온 보드 -ESP32 WiFi
(Adafruit AirLift Bitsy Add-On – ESP32 WiFi Co-Processor)
개요
- 본 제품은 ESP32 WiFi 코프로세서를 탑재한 AirLift Bitsy 애드온 보드입니다.
- WiFi 기능이 없는 ItsyBitsy 보드와 같이 사용할 수 있는 제품입니다.
- ESP32에 의해 WiFi가 관리 되기 때문에 소켓 데이터를 캐쉬하거나, SSL 라이브러리를 컴파일하거나 디버깅 할 필요가 없습니다.
- 프로세스 파워가 상대적으로 떨어지는 3V로직의 ItsyBitsy와 같이 사용할 수 있습니다만 ItsyBitsy M0 혹은 M4를 추천합니다
특징
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Product Dimensions: 35.6mm x 18.0mm x 5.5mm / 1.4" x 0.7" x 0.2"
Product Weight: 6.0g / 0.2oz
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You can use any ItsyBitsy with 3V logic (that means the ItsyBitsy 32u4 5V is not going to work), although the '32u4 Itsy will not be able to do very complex tasks or buffer a lot of data. It also works great with CircuitPython, a SAMD51/Cortex M4 minimum required since we need a bunch of RAM. All you need is an SPI bus and 2 control pins plus a 3V power supply that can provide up to 250mA during WiFi usage.
We placed an ESP32 module on a Bitsy board with a tri-state chip for MISO so you can share the SPI bus with other devices. Comes fully assembled and tested, pre-programmed with ESP32 SPI WiFi co-processor firmware that you can use in CircuitPython to use this into WiFi co-processsor over SPI + 2 pins. We also toss in some headers so you can solder it in on top of the Itsy for a compact sandwich, but you can also pick up a set of stacking headers to stack above/below your ItsyBitsy (use the Feather stacking headers and cut them down to size).
- For use in Arduino, the ItsyBitsy '32u4 3V can do basic connectivity and data transfer but they do not have a lot of RAM so we don't recommend them - use the M0, M4 or similar, for best results! For CircuitPython use, an ItsyBitsy M4 is required - the M0 series does not have enough RAM in CircuitPython.