Content for Project

PiDP-8, a PDP-8/I Replica

“Of all the PDP-8s, the 8/I is my favourite. Alas, getting a real one is impractical: they are pretty much impossible to obtain, and just as hard to maintain once you’ve found one. But asI learned from …

Spread Spectrum Phased Array Sonar

“Motivated by success on other acoustic projects and by this brain transplant blog, a sonar project sprang to mind. A phased array sonar works in the same way as a phased array radar. Rather rotating the sensor to look direction …

100MHz frequency counter with LCD display

“This is the same as the previous frequency counter but the output is on the 16x2 LCD display.”

1Wamp Electric Guitar Amplifier - Open Hardware

“1Wamp is a one Watt small guitar amplifier based on a JFET guitar pre-amp, the Big Muff Pi tone control and the LM386 power amplifier. This portable amp is an open hardware project designed by ElectroSmash using only free and …

4 Digits Thermometer Using DS18B20 Digital Sensor

“Counter based on PIC16F628A . Included C code and circuit diagram. Displays -55 to 125 centigrade. The temperature is read every 15 seconds, can be changed in the code. The math is using integers to calculate the degrees and the tenths …

An ARDUINO based JPEG Camera with IR and PIR

“Let’s equip Arduino with a serial-interface JPEG Camera with IR and try two applications: the first one saves shots (on a SD-card) at regular intervals while the second uses a PIR sensor to detect intrusions and photograph what …

Cloud Cam: Internet-Connected Security Camera

“The cloud cam is a project to build an internet-connected security camera using a Raspberry Pi and Pi camera. The camera can detect motion and upload images to Dropbox’s cloud storage service, or the beta of Adafruit IO, Adafruit …

Contactless Infrared Thermometer (Pyrometer)

“The device is designed for contactless measuring and monitoring temperature of objects. It is built on Melexis MLX90614 sensor and can measure temperatures in the range from -70°C to +380°C with 0.5°C accuracy and 0.01 …

LCD clock with 4” display

“The clock is built on a 4” (101 mm) LCD displays OD-103 manufactured by Orient Display. The LCD provides high contrast of digits and easy reading from a large distance. The unit runs on batteries and can also be …

Reachargeable Sound Reactive LED Peace Pendant

“With all the madness going on in the world right now, a LED sound reactive peace pendant would help radiate some love”