Search found 17 matches

by VisualEcho
Wed Dec 27, 2017 1:18 am
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 116556

Re: MicroPython on ESP32 with SPIRAM support

Here is the simplified description of available mqtt methods: Thank you, thank you, thank you. Extremely well timed post, as I went looking for a better explanation of the MQTT module functions and found this... only to notice that it was posted two days prior. I must admit I'm getting a little use...
by VisualEcho
Wed Oct 04, 2017 5:29 pm
Forum: ESP32 boards
Topic: ESP32 PCB questions
Replies: 22
Views: 8306

Re: ESP32 PCB questions

Adafruit ( https://www.adafruit.com ) has a few, and the extra dollar in price means it will be on your doorstep pretty quick. They don't have any of the WROVER modules today, but their WROVER kit with the big TFT looks great. They also take bitcoin, and that's my clincher, coin is worth a lot right...
by VisualEcho
Wed Oct 04, 2017 1:36 am
Forum: ESP32 boards
Topic: ADC calibration
Replies: 2
Views: 1442

Re: ADC calibration

I did get this figured out, and what I found was to not count on the ESP32's ADC very much.
by VisualEcho
Wed Oct 04, 2017 1:05 am
Forum: ESP32 boards
Topic: ESP32 PCB questions
Replies: 22
Views: 8306

Re: ESP32 PCB questions

I've just gotten Loboris' code to work on some custom stuff I make. It's not too hard, but not quite what I'd call a cheap hobby. I order PCBs and parts and melt them up in a toaster oven. If you have something in mind, I can probably help. Mostly I make modules (using Eagle, Gerbv, gerbmerge) to dr...
by VisualEcho
Sun Sep 17, 2017 7:32 pm
Forum: ESP32 boards
Topic: Differences between Micropython ports for ESP32 and ESP8266
Replies: 34
Views: 13796

Re: Differences between Micropython ports for ESP32 and ESP8266

WebREPL comes to mind. I'm making custom ESP32-WROOM gizmos to run household tasks, I'm still not sure of a way for a remote wireless ESP32 embed to update microPython files without WebREPL. Adafruit 'ampy' is saving me here, used over a serial TTL wire to the TX/Rx pins, so maybe somebody can enlig...
by VisualEcho
Sat Sep 16, 2017 7:53 pm
Forum: ESP32 boards
Topic: ADC calibration
Replies: 2
Views: 1442

ADC calibration

How do I use the "esp_adc_cal" functions? It looks like esp_adc_cal.c ( https://github.com/espressif/esp-idf/blob/9a26296a0e88a4c3ae27e9c848be970946fff87e/components/esp_adc_cal/esp_adc_cal.c ) is in the currently-used ESP-IDF branch, and so I was wondering if machine_adc.c ( https://github.com/micr...
by VisualEcho
Tue Jul 11, 2017 2:48 pm
Forum: ESP32 boards
Topic: How can I use Webrepl for ESP32?
Replies: 6
Views: 4473

Re: How can I use Webrepl for ESP32?

Hey, I need this too. Adafruit's AMPY works, but I get a little tired of the mechanics of getting it to work, and I won't be able to use it once the device is commissioned.

ESP32 + webrepl ?
by VisualEcho
Sat Dec 03, 2016 2:34 am
Forum: ESP8266 boards
Topic: Power-off from python?
Replies: 6
Views: 3171

Re: Power-off from python?

If the reset threshold voltage is the same as other I/O, it's somewhere between 25% and 75% of supply voltage, and I suspect on the lower side when falling. I'm thinking there's a cheap way to do that adding a resistor and a zener diode. I've had luck making intelligent power switches using an 8-pin...
by VisualEcho
Fri Dec 02, 2016 1:07 am
Forum: Hardware Projects
Topic: shiny: new ESP32 circuit
Replies: 1
Views: 1870

Re: shiny: new ESP32 circuit

Not taking Pycom, it boot loops aparently due to not having QIO flash. I did have some luck with Pumbaa through Ar(gh!)duino.
by VisualEcho
Wed Nov 30, 2016 10:59 pm
Forum: Hardware Projects
Topic: shiny: new ESP32 circuit
Replies: 1
Views: 1870

shiny: new ESP32 circuit

The other lamp controller works well enough I tried one with the new ESP32 module. I just melted this up in my toaster, eyeballed the connections, soldered on a power connector, *crossed my fingers*, and plugged it in. Hungry little guy is now broadcasting "FEED ME" on all wifi channels and Bluetoot...