Arduino based FM radio with digital volume control

arduino_fm

niq_ro have shared his Arduino based FM radio design on insrtuctable. TO catch FM waves he used TEA5767 FM chip which can be interfaced to Arduino via I2C interface. To adjust volume he used MCP4261-502E/P – dual digital potentiomer controlled via SPI on 8 bit steps. He made some effort to implement pretty nice interface on Nokia 5110 display. Here you can see the frequency of band, volume level, signal strength gauge. The only thing is left to do is to put everything in to enclosure.

Would you build a remote controlled lawn mower?

remote_lawn_mover

Mowing grass is one of those ‘must be done’ jobs where some people like it and some don’t. In fact this is great exercise and relax at least for me. Anyway if you like building cool things and amaze people, then why not upgrading your lawn mover to remote controlled version. Blake Hodgson have built an open source version of such mower called Lawn Da Vinci. He welded a metal frame of angle steel, fit a mobility scooter electric motor on the back to drive it around. As he says – any cheap mover can be fit to the frame to do the cutting job. He used an RC remote Tower Hobbies System 3000, but in fact any RC remote should be fine. The driving motor is controlled with Arduino … Continue reading

Farmbot rises farming to next level

farmbot

Growing your desired greens is pretty intense work. The preparation of soil seeding planning and constant care must be done to get result. It may seem that there isn’t much to do – just plant a seed and take a look from time to time. But in reality, growing great looking, nutritious plants require constant care that include watering, weeding, fertilizing and timely collecting. If farming isn’t your primary job, then most likely you are going to forget to water or pick weeds. This is why Rory Aronson decided to develop open source farming machine. Farmbot is a 3 axis CNC platform that can vary in size depending on your soil area. It is capable of taking care of multiple different kinds of crops in same area. Planning and taking … Continue reading

Versatile Arduino based bluetooth car kit

arduino_car_kit

No doubt Arduino is number one choice among electronics hobbyists and enthusiasts. IT is easy to prototype and program. Huge community accumulated loads of examples, tutorials and shields for any case. The Arduino board is only a heart with microcontroller inside. In order to have something working, you need either to build a circuit around, use shield or special kit. If you like robotics, check out the RT0006 Bluetooth Car Kit. It is great starting point in building autonomous or remotely controlled cars or robots. The kit includes Infrared remote control module, Arduino, Bluetooth module, short range wireless controller, servo driven ultrasonic range finder module. Each tire is driven by individual DC reduction motor.