Hackaday2d ago

Build This Open-Source Graphics Calculator

https://fed.brid.gy/r/https://hackaday.com/2026/03/23/build-this-open-source-graphics-calculator/

132d ago
Build This Open-Source Graphics Calculator https://hackaday.com/2026/03/23/build-this-open-source-graphics-calculator/
#Microcontrollers #Calculator #Graphicscalculator
Build This Open-Source Graphics Calculator

Graphics calculators are one of those strange technological cul-de-sacs. They rely on outdated technology and should not be nearly as expensive as they are, but market effects somehow keep prices w…

Hackaday
Hackaday3d ago

Better Faux-Analog VU Meters

https://fed.brid.gy/r/https://hackaday.com/2026/03/23/better-faux-analog-vu-meters/

133d ago
Better Faux-Analog VU Meters https://hackaday.com/2026/03/23/better-faux-analog-vu-meters/
#Microcontrollers #MusicalHacks #ESP32 #Gauge #Gc9a01 #LVGL #VUmeter
Better Faux-Analog VU Meters

One of the coolest things about old hi-fi hardware is that it often came with flickety needles that danced with the audio level. You can still buy these if you want, or you can simulate the same lo…

Hackaday
Hackaday4d ago

Arduino Code? On my 8051? It’s More Likely Than You Think

https://fed.brid.gy/r/https://hackaday.com/2026/03/22/arduino-code-on-my-8051-its-more-likely-than-you-think/

134d ago
Arduino Code? On my 8051? It’s More Likely Than You Think https://hackaday.com/2026/03/22/arduino-code-on-my-8051-its-more-likely-than-you-think/
#Microcontrollers #ArduinoIDE #RISCV #STC8
Arduino Code? On My 8051? It’s More Likely Than You Think

The 8051 was an 8-bit Harvard-architecture microcontroller first put out by Intel in 1980.  They’ve since discontinued that line, but it lives on in the low-cost STC8 family of chips, which i…

Hackaday
Hackaday4d ago

An Electric Jellyfish For Androids

https://fed.brid.gy/r/https://hackaday.com/2026/03/21/an-electric-jellyfish-for-androids/

134d ago
An Electric Jellyfish For Androids https://hackaday.com/2026/03/21/an-electric-jellyfish-for-androids/
#Classichacks #Microcontrollers #Bladerunner #CheapYellowDisplay #CYD #Electricsheep
An Electric Jellyfish For Androids

We have to admit, we didn’t know that we wanted a desktop electric jellyfish until seeing [likeablob]’s Denki-Kurage, but it’s one of those projects that just fills a need so perfectly. The need be…

Hackaday
Hackaday4d ago

ESP32: When Is A P4 A P4, But Not The P4 You Thought It Was

https://fed.brid.gy/r/https://hackaday.com/2026/03/21/esp32-when-is-a-p4-a-p4-but-not-the-p4-you-thought-it-was/

134d ago
ESP32: When Is A P4 A P4, But Not The P4 You Thought It Was https://hackaday.com/2026/03/21/esp32-when-is-a-p4-a-p4-but-not-the-p4-you-thought-it-was/
#Microcontrollers #Parts #Chiprevisions #ESP32P4 #Espressif #SKU
ESP32: When Is A P4 A P4, But Not The P4 You Thought It Was

We’re used to electronic parts of the same type staying predictably the same, sometimes over many years. An early Z80 from the mid 1970s can be exchanged with one from the end of production a…

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