Search found 2641 matches

by Roberthh
Tue Apr 27, 2021 6:12 am
Forum: ESP32 boards
Topic: PWM on ESP32
Replies: 3
Views: 304

Re: PWM on ESP32

Using an external inverter may be more dependable in this case (e.g. 74HC14).
by Roberthh
Mon Apr 26, 2021 6:20 pm
Forum: Raspberry Pi microcontroller boards
Topic: Raspberry Pico connection problem
Replies: 4
Views: 426

Re: Raspberry Pico connection problem

When you have downloaded the .uf2 file once, there is not need to do that again, unless you want to change tht firmware. What happens if you connect the device without pushing the bootsel button. Then it should be in normal operation mode.
by Roberthh
Mon Apr 26, 2021 4:30 pm
Forum: ESP32 boards
Topic: Error running ver 1.15 on ESP32-S2
Replies: 10
Views: 721

Re: Error running ver 1.15 on ESP32-S2

Sure, what else. Branch ESP-IDF release/v4.3
by Roberthh
Mon Apr 26, 2021 12:30 pm
Forum: Raspberry Pi microcontroller boards
Topic: [SOLVED] SPI on the Pico: has anyone made it work?
Replies: 7
Views: 1160

Re: [SOLVED] SPI on the Pico: has anyone made it work?

Both SPI and I2C work with Micropython on RP2.
by Roberthh
Sun Apr 25, 2021 6:19 pm
Forum: ESP32 boards
Topic: Error running ver 1.15 on ESP32-S2
Replies: 10
Views: 721

Re: Error running ver 1.15 on ESP32-S2

I do not have a S2 device yet, but the port is told to have REPL through UART. I'll check when I have a S2 board.
by Roberthh
Sun Apr 25, 2021 5:16 pm
Forum: ESP8266 boards
Topic: Connecting to WiFi
Replies: 8
Views: 524

Re: Connecting to WiFi

_ is just a legal variable name and often used as temp vatiable name.
by Roberthh
Sun Apr 25, 2021 5:13 pm
Forum: ESP8266 boards
Topic: Wemos D1 mini boot.py bricked (ESP8266)
Replies: 8
Views: 452

Re: Wemos D1 mini boot.py bricked (ESP8266)

Does the device manager show some unknown devices? In that case re-installing the ch340 device driver could help.
by Roberthh
Sun Apr 25, 2021 4:39 pm
Forum: ESP8266 boards
Topic: Wemos D1 mini boot.py bricked (ESP8266)
Replies: 8
Views: 452

Re: Wemos D1 mini boot.py bricked (ESP8266)

Yup. If it does not turn up as USB device, there is little you can do with software. So it looks like a hardware fault. The Wemos D1 Mini is generally pretty robust. You definitely cannot break it with wrong code. But that does not mean it cannot break. Checking the USB connector on the board is may...
by Roberthh
Sun Apr 25, 2021 3:26 pm
Forum: ESP8266 boards
Topic: Connecting to WiFi
Replies: 8
Views: 524

Re: Connecting to WiFi

The loop I use is: for _ in range(10): if nic.isconnected(): # check if the station is connected to an AP print('\nnetwork config:', nic.ifconfig()) break print('.', end='') time.sleep(1) else: print(" Connect attempt timed out\n")
by Roberthh
Sun Apr 25, 2021 2:56 pm
Forum: ESP8266 boards
Topic: Wemos D1 mini boot.py bricked (ESP8266)
Replies: 8
Views: 452

Re: Wemos D1 mini boot.py bricked (ESP8266)

That's bad. There are a few options: a) The USB cable broke. Try another cable b) The device switched to another COM port. Did you look into the device manager, if there are any changes when you plug and unplug the board? c) Try anther USB port on the PC d) reboot the PC (unlikely to help, but ....)...