There are several switches can be controlled with android and rf systems.
Can be used to generate signal in radio devices.
The AD9850 DDS signal generator is a small board that forms the heart of the VFO. It ties in nicely with the Arduino Nano microcontroller. Nano and AD9850 are wired together by using a custom PCB made...
Device keep temp. and all parameters to best grow. All You can see actual measurements on website.
This small 2 layer PCB is 0.6mm thick is intended to drive a LED with constant current - severaly features will be supported by a tiny microcontroller. Let's see if it works :)
The goal of this project is to create a laptop built entirely with open source materials. The laptop is powered by a quad-core ARM CPU, features an on-board FPGA, and has plenty of GPIOs.
If you try to look for a good and simple schematic of an audio preamplifier, which can be easily assembled, you will realize how difficult is to find it. To fill this gap, we propose 4 small audio pre...
A digital die circuit can be easily realised using an astable oscillator circuit followed by a counter, a display driver and a display. It is considered a classic electronic project for beginners. Alt...
prototype board for custom ps4 controller, more buton and remapping
We design devices like merging units, transducers, phasor measurement units etc.
A water level controller using 8051 is shown in this article. A lot of water level controller projects have been published in this website but this is the first one based on a microcontroller.
2 layer, 106x36mm, without silkmask
As devices get smaller and smaller, surface mount devices (SMD) are becoming more popular.? As an alternative to traditional, larger through hole components, SMD components save space on PCBs.? One gl...
Have a few dozen spare motherboards or PCB’s lying around? Make them into a table!
If you have an audio preamplifier whose "tone control" does not fully satisfy you, you may replace the existing stage with this stylish 3-way stereo tone control circuit which can act not only on treb...
The specific electronic die circuit which is presented here is small and simple, and has a single integrated circuit 4060. The 4060 is a 14-stage ripple carry binary counter, and contains an internal ...