In this Instructable I will walk through how I build my new and improved Macropad. I made one a while back and it has always had some things I would like to improve on it. The main one being the location of the state LEDs. When redesigning the case I figured why not take a […]
This project will show you how you can create your own programmable thermostat with temperature probe, an LED readout and ability to remote control outlets. The core of this project is actually a driver for a 4 digit seven segment display. There are lots uses for such a device. You can purchase something called a PID
Make your own programmable thermostat for $66 with Arduino Read More »
With this small, palm-sized device, it is possible to remote control your PC or your Smartphone. Or to control your PC and your Smartphone at the same time. And it is freely programmable. You can write programs like: Login to your PC, open and login to instructables.com, play/pause a movie or adjust the volume on
LCDs are widely used in applications like token-display machines in smalls and supermarkets, order number displays in restaurants and café, and so on. The project presented here demonstrates the working of Arduino based message display on LCD using Bluetooth. Circuit and working This circuit uses Arduino board that accepts data via HC-05 Bluetooth module from
Signal and power from the same voltage source Most hobby electronics store carry cheap and ready to use digital voltmeter modules (DVM) the problem with those is that they do usually require an independent power source to power the DVM-module. Many circuits are made such that you have one power supply and you would like
Programmable 8-character LCD module and digital voltmeter Read More »
illustrates a digitally programmable precision resistance that can serve as a microprocessor-driven power-supply load in custom-designed ATE (automatic-test equipment). An 8-bit current-output DAC, IC1, a DAC08, drives current-to-voltage converter IC2A, which in turn drives the gate of power MOSFET Q1. The device under test connects to J1 and J2. In operation, current from the device
Digitally programmable resistor serves as test load Read More »
Overview A software / hardware combo that allows for control of the analog filter inside a Commodore 64 that is running Cynthcart from a host computer (eg, Macbok, PC). Software • 16-step filter sequencer • Set the speed of the filter sequence (with intervals between values reaching 2ms) • Set the length of the sequence
Programmable auto filter interface for C64 using Arduino Read More »
