Continued thread
Kale The fact that I could buy an #esp32 with camera for $6 is fucking amazing
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4 posts4 participants1 post today
Half The Reflow Oven You Expected - Toaster oven reflow projects are such a done deal that there should be nothing new... - https://hackaday.com/2025/03/27/half-the-reflow-oven-you-expected/ #toasteroven #reflowoven #toolhacks #esp32
Hackaday · Half The Reflow Oven You ExpectedToaster oven reflow projects are such a done deal that there should be nothing new in one here in 2025. Take a toaster oven, an Arduino, and a thermocouple, and bake those boards! But [Paul J R] ha…
This ESP32 board will be controlling the low-voltage blinds in the apartment. Happy that the normal AC switches work as contacts. (Not sure why I doubted they would).
Metal Detector Built With Smartphone Interface - If you think of a metal detector, you’re probably thinking of a fairly simple devi... - https://hackaday.com/2025/03/25/metal-detector-built-with-smartphone-interface/ #microcontrollers #microcontroller #metaldetector #smartphone #toolhacks #esp32
Hackaday · Metal Detector Built With Smartphone InterfaceIf you think of a metal detector, you’re probably thinking of a fairly simple device with a big coil and a piercing whine coming from a tinny speaker. [mircemk] has built a more modern adapta…
Building a Handheld Pong Game - Pong was one of the first video games to really enter the public consciousness. Wh... - https://hackaday.com/2025/03/21/building-a-handheld-pong-game/ #3dprintedenclosure #classichacks #handheld #games #esp32 #pong
Hackaday · Building A Handheld Pong GamePong was one of the first video games to really enter the public consciousness. While it hasn’t had the staying power of franchises like Zelda or Call of Duty, it nonetheless still resonates …
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@3dprinting I have just burned two frustrating days learning the hard way that the Seeed XIAO ESP32-C3 does not have a one-to-one mapping from pin numbers to GPIO numbers. I don't know why I thought it did.
Now I've got working cold side temperature and ambient temp/humidity sensors in ESPHome.
17/N
Three SPI Busses Are One Too Many on This Cheap Yellow Display - The Cheap Yellow Display may not be the fastest of ESP32 boards with its older mod... - https://hackaday.com/2025/03/20/three-spi-busses-are-one-too-many-on-this-cheap-yellow-display/ #cheapyellowdisplay #microcontrollers #esp32 #spi
Hackaday · Three SPI Busses Are One Too Many On This Cheap Yellow DisplayThe Cheap Yellow Display may not be the fastest of ESP32 boards with its older model chip and 4 MB of memory, but its low price and useful array of on-board peripherals has made it something of a h…
Simulating Embedded Development To Reduce Iteration Time - There’s something that kills coding speed—iteration time. If you can smash a funct... - https://hackaday.com/2025/03/18/simulating-embedded-development-to-reduce-iteration-time/ #softwaredevelopment #programming #simulator #esp32
Hackaday · Simulating Embedded Development To Reduce Iteration TimeThere’s something that kills coding speed—iteration time. If you can smash a function key and run your code, then watch it break, tweak, and smash it again—you’re working fast. But if y…
Simple Robot Assembled From E-Waste Actually Looks Pretty Cool - If you’re designing a robot for a specific purpose, you’re probably ordering fresh... - https://hackaday.com/2025/03/17/simple-robot-assembled-from-e-waste-actually-looks-pretty-cool/ #robotshacks #esp32-cam #ledbulb #robot
Hackaday · Simple Robot Assembled From E-Waste Actually Looks Pretty CoolIf you’re designing a robot for a specific purpose, you’re probably ordering fresh parts and going with a clean sheet design. If you’re just building for fun though, you can just …
Continued thread
Idea for this PR is to add a network bridge mode for repeaters.
This will let you take multiple LoRa radios, setup meshcore repeater firmware and listen on any number of channels or with different antenna setups and bridge the routing across those different channels with a shared Wifi link(the two dotted white boxes).
I've tested it for a few days and it's pretty amazing to see meshcore automatically finding bridged routes.
Continued thread
Writing my first meshcore PR 
It's still a work-in progress, but having a lot of fun learning this code base!
GitHubwifi bridge for repeaters by sevenbitbyte · Pull Request #96 · ripplebiz/MeshCore
FlyingCam is a Sweet DIY Webcam on a Stick - Imagine you want to monitor a pot on the stove to see if it’s boiling over for jus... - https://hackaday.com/2025/03/12/flyingcam-is-sweet-diy-webcam-on-a-stick/ #classichacks #esp32camera #esp32 #ikea
Hackaday · FlyingCam Is A Sweet DIY Webcam On A StickImagine you want to monitor a pot on the stove to see if it’s boiling over for just a few minutes, but you don’t want to have a dedicated permanent IP webcam solution in your kitchen. [Sebastian Du…
woah, exactly as theorised by literally everyone that isn't fucking racist: #ESP32 "#backdoor" was just sensationalised by a security firm in order to get clicks for their own blog post which is basically just advertising their services
big conflict of interest. who knew that the biggest security violation will always be capitalist motives 
Replied in thread
Für einen kurzen Moment sah es so aus, als ob die Geschichte der Killer-Zahnbürsten nun doch Realität geworden ist: Auf allen einschlägigen Tech-Portalen machte am Wochenende die Geschichte einer Backdoor im #ESP32-Microchip die Runde. Spanische Forscher hatten diese an einer Konferenz in Madrid vorgestellt. Dieser Chip ist weltweit milliardenfach in IoT-Geräte verbaut, eine von aussen angreifbare Lücke wäre definitiv gefährlich. Aber es ist nur normales Debugging…
https://dnip.ch/2025/03/11/dnip-briefing-16-das-netz-ist-politisch/
Das Netz ist politisch · DNIP Briefing #16: das Netz ist politisch - Das Netz ist politischDie Redaktion präsentiert jeden Dienstag die Geschichten, die sie bewegt, aufgerüttelt oder zum Nachdenken angeregt hat.
Does anyone know QEMU well? I'm trying to figure out how to control the virtual TMP105 built into the #ESP32 fork of QEMU. If I build/run with "idf.py qemu" it magically works (reads from the virtual I2C TMP105 at addr 0x48). How do I change the temp in qemu? #iot #microcontroller
It increasingly looks like some people may have damaged their reputation for no apparent reason.
But it's important to ask, why would anyone do something like that? Who stands to win? What are their motives, aside from taking a reputational hit which doesn't appear to have been evaluated as a major downside? Who are we helping when we raise a false alarm?
https://hackaday.com/2025/03/10/the-esp32-bluetooth-backdoor-that-wasnt/
Hackaday · The ESP32 Bluetooth Backdoor That Wasn’tRecently there was a panicked scrambling after the announcement by [Tarlogic] of a ‘backdoor’ found in Espressif’s popular ESP32 MCUs. Specifically a backdoor on the Bluetooth si…
It increasingly looks like some people may have damaged their reputation for no apparent reason.
But it's important to ask, why would anyone do something like that? Who stands to win? What are their motives, aside from taking a reputational hit which doesn't appear to have been evaluated as a major downside? Who are we helping when we raise a false alarm?
https://hackaday.com/2025/03/10/the-esp32-bluetooth-backdoor-that-wasnt/
Hackaday · The ESP32 Bluetooth Backdoor That Wasn’tRecently there was a panicked scrambling after the announcement by [Tarlogic] of a ‘backdoor’ found in Espressif’s popular ESP32 MCUs. Specifically a backdoor on the Bluetooth si…
The ESP32 Bluetooth Backdoor That Wasn’t - Recently there was a panicked scrambling after the announcement by [Tarlogic] of a... - https://hackaday.com/2025/03/10/the-esp32-bluetooth-backdoor-that-wasnt/ #securityhacks #bluetooth #esp32 #cve
Hackaday · The ESP32 Bluetooth Backdoor That Wasn’tRecently there was a panicked scrambling after the announcement by [Tarlogic] of a ‘backdoor’ found in Espressif’s popular ESP32 MCUs. Specifically a backdoor on the Bluetooth si…
FTR: "We are left to conclude that the Tarlogic press release is spreading Fear, Uncertainty, and Doubt (FUD) to gain attention. And the BleepingComputer article, and its reposts to platforms like Slashdot exacerbate the FUD by focusing on the fact that Espressif is a Chinese vendor." (via https://darkmentor.com/blog/esp32_non-backdoor/)
Stupid question, someone may know.
ESP32-S3-MINI-1-N4R2 has PSRAM (2M).
It is Quad SPI, data sheet says that.
But is it 40MHz or 80MHz.
Anyone know? I could not find in data sheet. Data sheet says flash is 80MHz, but does not mention PSRAM speed. I don't want to just rely on what seems to work in case marginal.