Now in stock on Lectronz: ESP32 Data Logger w/RTC & SD https://lectronz.com/products/esp32-data-logger
#ESP32 #I2C #Sensors

Currently renovating the kitchen and noticed this on the pcb of the new extractor hood. I feel tempted but we are running tight on schedule.

Moving Software Down to Hardware - In theory, any piece of software could be built out of discrete pieces of hardware... - https://hackaday.com/2025/03/21/moving-software-down-to-hardware/ #communications #shiftregister #programming #hardware #counter #i2c

Has anyone managed to make the #waveshare #ups #hat E work on a #raspberrypi4 ? I have no #i2c data from it at all. Pins look connected. Pi has power over the pins. But no i2c.
https://www.waveshare.com/wiki/UPS_HAT_(E)
Soldered pins also do not work. i2c does not work for protected and unprotected batteries.

#i2c #pogopins connection of #waveshare #ups E (https://www.waveshare.com/wiki/UPS_HAT_(E)) #hat to #raspberrypi4 #gpio appears not to be detected. Anyone have similar problems with #pogopins or are they 99% reliable normally? Thanks

I2C Sniffing Comes to the Bus Pirate 5 - While the Bus Pirate 5 is an impressive piece of hardware, the software is arguabl... - https://hackaday.com/2025/03/12/i2c-sniffing-comes-to-the-bus-pirate-5/ #reverseengineering #buspirate5 #toolhacks #sniffer #i2c

I've just posted about a couple of neat I2C modules that I'm planning to use with a MIDI controller at some point.

https://diyelectromusic.com/2025/03/09/duppa-i2c-midi-controller-part-1/

Just built a 4-port #I2C #bus #expander for the #Mynor #My4TH #ForthDeck so I can finally get rid of my current breadboard setup which has been sitting on my desk for far too long, causing even more of a mess. Turned out nice, I think ...

UART/I2C firmware for https://www.tindie.com/products/8086net/rp2040-interfacer-uarti2c/ RP2040 Interfacer is now available on https://github.com/8086net/RP2040_Interfacer-UART_I2C

(it's also supported by CircuitPython https://circuitpython.org/board/8086_rp2040_interfacer/ )

Just had a bit of a deep-dive into two new topics:
First: Various I2C connections - Stemma, Qwiic, etc
Then: A cheap, and largely undocumented ESP32C3 OLED board.

https://emalliab.wordpress.com/2025/02/11/stemma-grove-qt-gravity-duppa-i2c/
https://emalliab.wordpress.com/2025/02/12/esp32-c3-0-42-oled/

Back to the Future of Texting: SMS on a Panasonic Typewriter - Among us Hackaday writers, there are quite a few enthusiasts for retro artifacts –... - https://hackaday.com/2024/12/18/back-to-the-future-of-texting-sms-on-a-panasonic-typewriter/ #microcontrollers #retrocomputing #panasonict36 #typewriter #esp32 #i2c #sms

A je to!

Pevně věřím, že ta nejtěžší část je za mnou.

Sniffing Around Inside a ThinkPad Battery - For most people, a battery pack that’s misbehaving simply means it’s time to get a... - https://hackaday.com/2024/12/04/sniffing-around-inside-a-thinkpad-battery/ #computerhacks #batteryhacks #batterypack #sniffing #smbbus #i2c

For anyone interested in connecting an #esp32 to an #ublox #GNSS module, i just published a brief outline on how I got it to work over the #i2c bus.

It's part of my crazy #DIY broadcast clock #electronics project (all #opensource #oss)...

Personal page:
https://espenandersen.no/u-blox-module-with-esp32/

GitHub:
https://github.com/espena/broadcast-clock

New on Lectronz: SSD1306 OLED SAO https://lectronz.com/products/ssd1306-oled-sao
#Displays #I2C

Now in stock on Lectronz: ESP32 Data Logger w/RTC & SD https://lectronz.com/products/esp32-data-logger
#ESP32 #I2C #Sensors

New on Lectronz: I2C vacuum fluorescent display (VFD) https://lectronz.com/products/i2c-vacuum-fluorescent-display-vfd
#Displays #I2C

I2C the Hard Way - [Igor] has an AS5600 magnetic rotary encoder chip on a breakout board. Normally, y... - https://hackaday.com/2024/10/21/i2c-the-hard-way/ #microcontrollers #i2c