Category Archives: Microcontrollers

Punch Through Switches Gears, Shucks Beans

Do you own a LightBlue Bean or Bean+ from Punch Through? If you don’t have one now, you probably never will, as the company has recently announced they’re no longer selling or supporting the Bluetooth Low Energy microcontrollers. The company says that after selling more than 100,000 Bean devices, the …read more

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Posted in ble, discontinued, Lightblue, LightBlue Bean, microcontroller, Microcontrollers, news, Punch Through | Leave a comment

Speeding Up Drawing To MCU-Connected Serial Displays

Writing image data to serially connected (SPI/I2C) displays from a microcontroller is easy enough these days, courtesy of standards defined by the MIPI Alliance, yet there are some gotchas in it which may catch someone using it unaware. [Larry Bank] wrote up a good summary of how one can get …read more

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Posted in lcds, MCU, Microcontrollers, mipi, serial displays, spi, video hacks | Leave a comment

Trill: Easy Positional Touch Sensors for Your Projects

Creating capacitive touch-sensitive buttons is easy these days; many microcontrollers have cap-sense hardware built-in. This will work for simple on/off control, but what if you want a linear, position-sensitive input, like you’d find on a computer touchpad or your smartphone screen? Not so easy — at least until now. Trill …read more

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Posted in Bela, capacitive sensing, capacitive sensor, capacitive slider, capsense, Crowd Funding, CY8C20636A, cypress, Hackaday Columns, i2c, kickstarter, Microcontrollers, news, slider, Trill | Leave a comment

Detecting Cars with an ESP8266 Magnetometer

Having a motorized gate on your driveway is great, but only if there’s an easy way to trigger it. [Andrew] says the gate at his parent’s place could only be controlled by manually pushing a button on the panel or with a dinky remote that didn’t have nearly the range …read more

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Posted in automatic, ESP8266, gate, home hacks, magnetometer, Microcontrollers, QMC5883X, sensor, weatherproofing | Leave a comment

Fixing A Cheap UPS HAT For Your Raspberry Pi With A Tiny Daemon

An uninterruptible power supply (UPS) isn’t something solely to have hooked up to your desktop PC. Your Raspberry Pi SBC might also benefit from it. Yet the available options aren’t too great, or are too expensive. This leads folk including [Joachim Baumann] to modify cheerfully cheap Chinese UPS HAT boards …read more

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Posted in attiny, ATtiny Hacks, geekworm, Microcontrollers, Raspberry Pi, ups | Leave a comment

The Amazon Dash Button: A Retrospective

The Internet of Things will revolutionize everything! Manufacturing? Dog walking? Coffee bean refilling? Car driving? Food eating? Put a sensor in it! The marketing makes it pretty clear that there’s no part of our lives which isn’t enhanced with The Internet of Things. Why? Because with a simple sensor and …read more

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Posted in acoustic modem, amazon, amazon dash button, amazon dash hack, amazon dash wand, Amazon Echo, battery, bluetooth, Dash button, e-waste, Hackaday Columns, hardware, Microcontrollers, reverse engineering, teardown, wifi | Leave a comment

GigaDevice Releasing RISC-V MCUs And Development Boards

Probably not too many people have heard of Chinese manufacturer GigaDevice who so far has mostly been known as a NOR Flash memory manufacturer. Their GD32 range of MCUs is however STM32-compatible, making them interesting (cheaper) alternatives to sourcing directly from ST. Now GigaDevice has announced during a presentation that …read more

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Posted in gd32v, gigadevice, hardware, Microcontrollers, news, RISC-V, stm32 | Leave a comment

Qt Arrives For Small Computers

There was a time when writing embedded systems meant never having to deal with graphical user interfaces, and spending long hours trying to free up a dozen bytes of ROM to add a feature. Nowadays, an embedded system is likely to have a screen and what would have been a …read more

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Posted in embedded, gui, Microcontrollers, qt | Leave a comment

Returning Digital Watches To the Analog Age: Enter The Charliewatch

The Charliewatch by [Trammell Hudson] is one of those projects which is beautiful in both design and simplicity. After seeing [Travis Goodspeed]’s GoodWatch21 digital watch project based around a Texas Instruments MSP430-based SoC, [Trammell] decided that it’d be neat if it was more analog. This is accomplished using the CC430F5137IRGZR …read more

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Posted in charlieplexing, charliewatch, Goodwatch, Microcontrollers, msp430, watches, wearable hacks | Leave a comment

A Friendly Reminder That You Might Be In Danger

Product recalls are one of those things that most people don’t pay attention to until things get really bad. If it’s serious enough for somebody to get hurt or even die, then the media will pick it up, but most of the time they simply pass by in silence. In …read more

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Posted in CircuitPython, live feed, Microcontrollers, parts, product recall, PyPortal | Leave a comment