Recent posts

2.2 or 2.4 or 2.8 inch SPI TFT LCD ILI9341 to Arduino Uno

Bob Davis  has written an article on interfacing a 2.8 inch SPI TFT LCD ILI9341 with the Arduino Uno: Over the weekend I figured out how to interface a 2.8 inch SPI TFT that has a ILI9341 chip to an Arduino Uno.  All it takes is eight 1K...
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#FreePCB via Twitter to 2 random RTs

Every Tuesday we give away two coupons for the free PCB drawer via Twitter. This post was announced on Twitter, and in 24 hours we’ll send coupon codes to two random retweeters. Don’t forget there’s free PCBs three times a every...
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The factory of the world – Hackaday documentary on the Shenzhen Ecosystem

The factory of the world – Hackaday documentary on the Shenzhen Ecosystem When it comes to manufacturing, no place in the world has the same kind of allure as the Pearl River Delta region of China. Within just an hour-long train ride, two vastly...
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LM2596 DC-DC converter module testing

Kerry D. Wong writes: In the video below, I tested this DC-DC converter board under various operating conditions and measured its efficiencies. To conclude, these switching regulator boards are well suited for low to medium current draw digital...
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DIY csCNC – 2 (Linistepper driver and testing with Bus Pirate)

Oakkar7 has a nice build log on his DIY csCNC, he writes: Since I started building DIY CNC, I checked the free, opensource motor controller. There are several alternatives. I chose linisteppr controller. – Simple and cheap (my first priority :)...
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App note: Designer’s guide for the Si114x

Si114x proximity sensors from Silicon Labs design guide. Link here This application note provides an outline for using the Si114x proximity detector and ambient-light sensor. General considerations of electrical and optical component selection,...
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Free PCB Sunday: Pick your PCB

We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion...
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App note: Touchless lavatory appliance design

Using the Silicon Labs’s Si1141 sensor and C8051F9xx series microcontroller for touchless lavatory. Link here The Si1141 is a single-channel, reflectance-based proximity detector with an integrated ambient light sensor and can be used as a...
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Building a CC2500 to BLE adaptor

Don has been working on a CC2500 to BLE adaptor project, that is available on Github: Posting some details in response to questions about the current module.  Everything for the CC2500 is on Github.  Fish around here and you’ll also find...
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Free PCB coupon via Facebook to 2 random commenters

Every Friday we give away some extra PCBs via Facebook. This post was announced on Facebook, and on Monday we’ll send coupon codes to two random commenters. The coupon code usually go to Facebook ‘Other’ Messages Folder . More PCBs via...
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