M5Stack New PSRAM 2.0! FIRE IoT Kit Dual Core ESP32 16M-Flash+4M-PSRAM Development Board MIC/BLE MPU9250 of Micropython (FIRE)

This is the most powerful of the M5Stack series - much more useable RAM. Programs easily with Arduino, VSCode+Platformio, or Flow. I didn't think the other (1 star) review was correct - Flow installed easily using Windows 10. If you want to run MicroPython, this is the device to get because of the 4M PSRAM.

I was excited to get this because of the FLOW software v.s the learning curve of Arduino IDE, I bought several modules at the same time only o find out the Flow software didn't support them and could only be used with Arduino... so I might as well of saved money and just bought an esp32. If the modules were supported in flow then this would have been awesome.

Great hardware and support, many languages supported...

The unit will NOT charge or Power ON. I found no link to contact the Seller. One of the POGO PINS is too short (smaller than the others to make contact with the positive terminal on the main unit (the M5). Please send one to me that works. Waiting to be advised.