ESP-01 clone using the ESP32 processor instead of the ESP8266 to support more processing power and BLE with a pin compatible footprint.
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Production of a 20-piece batch at SEEED finished and functional. See https://www.seeedstudio.com/ESP32-01-g-1299684 for details.
A suitable Programmes is described in another project. See https://hackaday.io/project/176645-esp32-01-programmer for details.
The first version of the ESP(32)-01 Programmer was build. Due to a pinout error, the USB-Connector (a Throu-Hole-Device, so no patch wires needed) must be soldered to the backside of the PCB. The Bug has been fixed in todays uploaded documentation and gerber files. Nevertheless, the gallery-pictures show the "buggy" setup.
Next steps: Test the board.
Hello Thomas,
i really like your project and I'm super interested in building a ESP32-01. I want to order it on JLCPCB with slightly different components (as some of them are discontinued (e.g. the flash) or are expensive/not available there) so my question is: Were you successful in using it and flashing it? Is there something special that needs to be done to flash it or is your ESP32-01 flasher doing all the work already?
Best regards
Jan
what are the improvements with this in numbers?
A lot of resin 3D printers have a slot for a ESP-01 module but it’s too slow to actually do anything of use with one so they’re generally left unused, maybe this is the solution?
The ESP32 has two cores instead of just one, it clocks with twice the frequency (160 MHz instead of 80 MHz) and supports Bluetooth and WLAN while the ESP8266 has only WLAN.
The ESP32 has 512 kB RAM, while the older ESP8266 has only slightly above 100 kB (if I read the datasheet correct). The Flash Chip used here has 4MB compared to the 512k or 1M of the standard ESP-01 modules.
Conclusion: Yes, significant more processing power and memory. If someone is willing to give it a try, I would be very pleased and provide him/her one of these Modules.
I would be happy to give it a try, my resin printer (Ld-002r) has a chitu L v3 board in it which is ESP-01 compatible
Thomas Buck
ElectroBoy
Catherine Sui
kodera2t
Hi Thomas! Aaah, finally I find a small form factor ESP32 board ! I am modifying a lightbulb and need a small module to integrate into it, since the bigger WeMos D1 sized module I used does not fit inside. Your module would be perfect ! Where is it available for purchase ?
Also, one big recommendation : use the space next to the 2x4 pin connector to add 4 extra pins, 2 on each side. People don't have to solder headers at these locations... but if they do, they get 4 more GPIOs, with the same board dimensions, and still compatible with ESP01S ! I never understood why manufacturers didn't do that.
If you do it, try exporting the I2C pins, and at least 1 ADC and 1 PWM pin. It would really open up the possibilities ! It is also a good idea to use a dedicated GPIO for the LED (I see you used IO5, good). I would be OK to participate to build a few of these, maybe we can get a group order started, I'd happily get 10.
PS: Another comment... I would remove the ON LED and replace it with another LED on another GPIO. I regularly remove these LEDs to save power and having the capability to control them via software would be much better. Same for the TX LED, I never saw a need for that, but software controlled LEDs are nice.