Aokin ESP32 ESP-WROOM-32 Development Board 2.4 GHz WiFi and Bluetooth Dual Cores Microcontroller ESP-WROOM-32 Chip for Arduino NodeMCU, 3 Pcs

Good RAM, easy to work with. These are wide, so you’ll need two breadboards, but a great value.

I was looking for more of the ESP-32 based 30-pin development boards to go along with a previous purchase for a project and these were cheaper with more in the order than my previous pick. Everything just worked out of the box! I already had my Arduino IDE setup from the previous boards and these did not require any additional drivers or libraries. The Wifi and Bluetooth both work great and, so far, all the pins I've used have been functional. They were packed neatly with foam over the pins and inside an anti-static back for protection.

I use both wifi and Bluetooth in a single application. Both have amazing range.

I have run a few sketches that work . However My goal is to use the 4 meg of non volatile memory to store tables in. Then retrieve later as needed. I have searched hours and tried multiple sketches without success.I will not purchase these again, Unless there is a resolution.

Two modules work fine, but one do not word and do not accept programming process.