MICROCONTROLLERS

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Everything microcontrollers: projects, questions, new releases, etc.

dragontamer's Beginner Guides:

Beginner Series I: What is a Microcontroller?

Beginner Series II: The "Generic" Microcontroller

Beginner Sidenote: Microchip's Signal Chain Design Guide

Beginner Series III: Skills and Complexity Tiers

Beginner Series IV: Deep Dive into Microchip's AVR EA

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This Raspberry Pi RP2040 wristwatch uses LEDs to tell the time (www.tomshardware.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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The unPhone Puts a Hackable, Educational, ESP32-S3-Powered LoRaWAN Gadget in Everyone's Hands (unphone.net)
submitted 7 months ago by [email protected] to c/[email protected]
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ESP32 Provides Distraction-Free Writing Experience (github.com)
submitted 7 months ago by [email protected] to c/[email protected]
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Technically not a microcontroller, but how cool is this little FPGA microSD? (www.hackster.io)
submitted 7 months ago by [email protected] to c/[email protected]
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Espressif’s ESP32-P4 Application Processor: Details Begin To Emerge (hackaday.com)
submitted 7 months ago by [email protected] to c/[email protected]
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DIY ESP32 drone costs about $12 to make (circuitdigest.com)
submitted 7 months ago by [email protected] to c/[email protected]
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Conexio BLITZ Combines Dual-Band Wi-Fi 6 and Bluetooth 5.4 Into a Tiny Prototyping Platform (www.crowdsupply.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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M5Stack's new programmable robot, the BugC2 (shop.m5stack.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Vintage computer to HDMI with Feather DVI & CircuitPython (learn.adafruit.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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SparkFun Expands Its Thing Plus Range with a New Edge AI Ready ESP32-S3 Model (www.sparkfun.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Nuvoton launches M433 Series ultra-low power Arm Cortex-M4F MCUs, NuMaker-M433SE development board (www.nuvoton.com)
submitted 7 months ago by [email protected] to c/[email protected]
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Saving A Clock Radio With An LM8562 (hackaday.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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SIXSPEED's Poki Is an Espressif ESP32-S3-Powered Companion Robot for Your Car (www.kickstarter.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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WebStick: A miniature personal cloud drive designed for ESP8266 (ESP12F) (github.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Lolra: Transmit LoRa Frames Without a Radio (github.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Adafruit's New USB Temperature and Humidity Sensor Trinkey Provides Plug-and-Play Logging (blog.adafruit.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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spinner-mouse: Arduino-based USB rotary controller for arcade Arkanoid, Tempest, etc. (github.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Renesas' In-House RISC-V Microcontroller Core Hits the Market as the 48MHz Low-Power R9A02G021 MCU (www.hackster.io)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Ryan Murphy's Line-Power Smart Thermostats Expand Off-the-Shelf Sockets for Home Assistant Heating (github.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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$6.99 Waveshare’s ESP32-C6-Pico Board resembles Raspberry Pi Pico board (www.waveshare.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Turn Everyday Objects into Interactive Gadgets with Arduino (www.electromaker.io)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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Smart Analog Sensor Interface for Smoke Detection With Ambient Light Cancellation Reference Design (Ti MSPM0L Reference Design) (www.ti.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
 
 

cross-posted from: https://lemmy.world/post/13316176

This PDF talks about blue and infrared LEDs + photodiode and how to create a smoke detector out of them.

The gist is to send a signal over blue LED + infrared LED, and then measure from the photodiode to see how much the light reflects back (which will only reflect back in the presence of smoke).

This design uses the 2x free OpAmps on the MSPM0L (Cortex M0+) microcontroller, showing a mixed-signal design where one mixed-signal microcontroller can reduce the number of parts.

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Flipper Zero: Our Response to the Canadian Government (blog.flipper.net)
submitted 7 months ago by [email protected] to c/[email protected]
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PCB Design Review: ESP32-S3 Round LCD Board (hackaday.com)
submitted 7 months ago by [email protected] to c/[email protected]
0 comments fedilink
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João Santos' Two-Microcontroller Project Brings Back the Pager with a Web-Connected Twist (www.hackster.io)
submitted 7 months ago by [email protected] to c/[email protected]
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