#Video #toread about a 14-megabyte #AI model that can apparently run on an #ESP32 or something?
on 02026-09-03#AI #music #MP3 by #Viper-7 about #ESP32 microcontrollers
on 02026-05-24#M5Stack are selling a US$75 ereader-sized (4 “inch” diagonal, 400×600) #eink #hardware kit with six colors, built around the #ESP32. #pricing
on 02026-05-23#M5stack has already been shipping some other versions of the #Cardputer, like this “Cardputer Adv”, which are #ESP32 based rather than Cortex-A based.
on 02026-05-22#LilyGo has a US$87.35 “pager” that looks exactly like the first-generation BlackBerry but with a better screen (480×222 IPS color), two deployable antennas, and #LoRa support, called the “T-Lora Pager”. It’s advertised as a “LoRa + ESP32-S3 Handheld AIOT Programmable Development Device” and they show it here running #MeshCore. 16MB Flash and 8MB PSRAM. #ESP32
on 02026-05-22#video of Paul Lagier’s keyfob-sized #e-ink e-reader #hardware called “Pala One”, based on #ESP32.
on 02026-04-15running Windows 95 and Linux on #ESP32 (S3) #microcontrollers through 80386 #emulation with He Chunhui’s "Tiny386" and SeaBIOS. #retrocomputing
on 02025-11-11#video of #Bitluni making a laser vector display with some laser galvos driven from an #ESP32, burning out a lot of hardware in the process. #microcontrollers #electronics #hardware
on 02025-03-04a #C++ library for using an #ESP32 as a #USB host. #microcontrollers
on 02024-11-20#ESP32 #microcontrollers can be #USB hosts for HID devices
on 02024-11-20#ESP32 #microcontrollers have not very good ADCs, not good enough for music with DNL of ±7 counts and lots of noise, despite 12 bits of resolution at 200ksps
on 02024-09-24#Dr-Volt #video about converting an old Logitech mouse into a camera. It had a custom Logitech DIP on a single-sided PCB, separate from the ADNS 2610 camera sensor DIP, which has an 18×18 array of photodiodes visible under a microscope, with an “AGILENT 28D3D” label on the exposed die and a date of “2004”. Since he didn’t have a datasheet for the Logitech microcontroller, he hooked up the sensor chip to an #ESP32 S3 (programmed with #PlatformIO and VSCode) from his collection of #microcontrollers, like the one he’d built a laser scanning microscope from before. The chip uses an SPI-like protocol, but using a bidirectional data pin, and it exposes registers for not just Delta_X and Delta_Y but also some others including Pixel_Data, reads from which provide one pixel after another (so there’s no way to request a particular pixel). The mouse’s native resolution seems like a decent monochrome microscope, but with a very small field of view. He was able to get about a 3fps frame, unsurprising for what’s basically a debugging feature. He grafted the ESP32 into the mouse. #hoarding #electronics #hardware
#video on telephone #decentralization with apparently some newly available mesh networking firmware, "Meshtastic" #radio running on #ESP32 hardware: encrypted text-based walkie-talkies using #LoRa on the Heltec WiFi_LoRa_32_V3 board, which has an ESP32-S3FN8 on board. Not low-power, though; half a watt idle! And the firmware is built on PlatformIO. You can flash it via #WebUSB on flasher.meshtastic.org. But it depends on a custom app on your cellphone for its UI, to which it communicates over Bluetooth (or USB serial or Wi-Fi), because the actual board only has two buttons, though it does have a respectable OLED screen which displays incoming text messages. It also needs the cellphone if you’re going to give it GPS. You can also use a browser app which uses your Wi-Fi or Bluetooth to talk to your local devices. The YouTuber reports he got messages through (spottily) at 5km from his 32nd-floor highrise balcony, using the 90-bits-per-second data rate, but at ground level at the beach, only about 150 meters of range, which he blames on the antenna. It can share private keys over QR codes to set up an encrypted channel, but by default doesn’t.
Source code for successful #ESP32 power side-channel attack. #security
on 02024-01-17#hardware designs for successful #ESP32 power side-channel attack. #security
on 02024-01-17writeup of successful #ESP32 power side-channel attack. #security
on 02024-01-17#ESP32 #security against physical access broken with power side-channel attacks, including the ESP32-C3 and ESP32-C6
on 02024-01-17#Rust on #ESP32 and other #Espressif #embedded #hardware. “This is the next quarterly update of esp-rs effort, detailing the progress over Q2 2023.”
on 02023-07-01discussion of #Rust on #ESP32 and other #Espressif #embedded #hardware
on 02023-07-01#Golang compiles to #wasm via "Tinygo", which can also target #embedded boards including the #Arduino Uno, the #ESP32, the Adafruit Feather M0, and the #Gameboy Advance.
on 02023-06-23A new #ESP32 #microcontroller "ESP32-C3" with #RISC-V RV32IMC has better single-core #performance but less RAM
on 02021-02-09a 960×540 #eink #hardware kit for US$69 with an #ESP32 #microcontroller in it and a two-point touchscreen.
on 02021-01-21The #PDP-11 #emulation for an #ESP32 #microcontroller #hardware with a 3-D printed VT102 that can run #BSD.
on 02021-01-21This guy got 2.11 #BSD running on a #PDP-11 #emulation on an #ESP32 #microcontroller.
on 02021-01-21