MicroPython Forum

Something like this?

With WiFi: https://github.com/spacehuhn/wifi_ducky
Without WiFi: https://shop.hak5.org/products/usb-rubber-ducky-deluxe

If a Raspberry Pi and a piece of wire can be made into a radio frequency transmitter, can a Pyboard / STM32F4 based board too?
https://github.com/F5OEO/rpitx
https://www.rtl-sdr.com/tag/rpitx/

Anyone else experimenting with software defined radio?

Saw this one on Seeed Studio: https://www.seeedstudio.com/AZ3166-IOT-Developer-Kit-p-2922.html It's a $39 EMW3166 based dev board with 128x64 OLED, RGB LED, IR, temp/humid sensor, pressure sensor, magnetometer, motion sensor, "Security IC", audio IC, headphone jack and mini speaker. What caught my e...

Have you seen this one?
https://github.com/dhylands/python_lcd

Judging from these schematics, another thing you could try testing continuity between the battery terminals and the DS1307 IC
https://robotdyn.com/pub/media/0G-00005 ... ATALOG.pdf

Pin 3 Vbat
Pin 4 GND

Is it the same RTC module as in the photo above?
I’ll give it a try with my D1 mini pro tonight.

What’s the voltage on your coin cell?

Normally people use pins D1 and D2 for I2C. D1 GPIO5 for SCL D2 GPIO4 for SDA There’s a problem though. I2C requires pull up resistors on the SCL+SDA pins. You’ll need some external 10k resistors connecting both to 3V3. “Pulling them up” instead of leaving them floating. There is a trick you can use...

Also, have a read of this thread: viewtopic.php?f=14&t=1422

I'm going to assume you are using a 1602 LCD with one of these I2C backpacks: https://www.aliexpress.com/item/LCD1602-I2C-LCD-1602-module-Blue-screen-IIC-I2C-for-arduino-LCD1602-Adapter-plate/32651314933.html Git clone or download the repo: https://github.com/dhylands/python_lcd Open the lcd folder....