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04 Dec
0

John Park’s Coffee Detonator @adafruit @johnedgarpark #adafruit

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Use a high-voltage AC power source to trigger a Feather microcontroller-driven coffee grinder. This guide will show you how a magneto, generator, or other AC power source can be safely converted into a small DC signal easily read by an Arduino-compatible microcontroller. Then, the microcontroller can trigger a 120V relay to turn on any AC device or appliance, such as a coffee grinder, blender, lamp, or pump.  

04 Dec
0

John Park’s Remote Effects Trigger Box @adafruit @johnedgarpark #adafruit

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Build this powerful RF Feather-based controller to wirelessly trigger props, lights, effects, and more! Using 900Mhz (or 425Mhz) RF for long-range, encrypted communications between the transmitter and the receivers, this general purpose controller will make your wireless triggering wishes come true! Plus, you get to use a rotary encoder knob to scroll menu sets, and punch in your commands on the lighted 4×4 Trellis keypad.  

04 Dec
0

My Mini Race Car Kit @adafruit #adafruit @johnedgarpark #MyMiniRaceCar

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Zooooom! Now you can build and drive your own Mini Race Car using the Feather 32u4 Bluefruit LE microcontroller. Keep an eye on racetrack telemetry with the included HTU21D-F temperature & humidity sensor breakout board.   We partnered with our good friends at Digi-Key and TE Connectivity for this project pack. Check out digikey.com/racing for more info on all the fun efforts Adafruit, Digi-Key, and TE are teaming up on!  

04 Dec
0

Circuit Playground Express Light Paintbrush with MakeCode @adafruit @johnedgarpark #adafruit

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Now, with MakeCode on Circuit Playground Express! Paint with light using the Circuit Playground Light Paint Brush for long exposure photography. Tilt the brush to change colors using the on-board accelerometer.   Streaks of colorful light, suspended in midair — ever since people began to capture images on film we have had a fascination with light painting and light drawing. By simply moving a light source in front of an open shutter, motion over time could be captured on camera.  

04 Dec
0

John Park’s Mystery Box: The Haunted Radio @adafruit @johnedgarpark #adafruit

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Breathe spooky life into an old radio by adding a Feather microcontroller to read the dial and play mysterious sounds and music! Here’s how you can repurpose a vintage radio as an eerie playback device that uses the original tuner dial, power knob, and speake, then grafts on a Feather ESP8266 Huzzah with Music Maker MP3 FeatherWing to play creepy sound effects, and trigger a specific song when intrepid guests tune the dial to a specific frequency, tripping the Hall effect sensor.  

04 Dec
0

John Park’s Metro Minimalist Clock @adafruit @johnedgarpark #adafruit

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What time is it? Metro Mini time! Build this stylish, minimalist clock. It’s a clock made of love. And a Metro mini, a real time clock module, and a 7-segment display backpack. You can build it on a breadboard, solder it to a perma proto board, or, go for a minimalist “dead bug” air wiring method using header strips. Then, mount it to anything you like, such as the hardwood floor scrap seen here.  

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