As far as controlling robots goes, makers today are spoilt for choice. WiFi and Bluetooth enabled microcontrollers are a dime a dozen, and integration with smartphone apps is a cinch. Despite this, the old methods still hold sway, as [Igor Fonseca] demonstrates with a simple Arduino bot. It’s a classic build, using a tracked chassis with a pair of motors providing propulsion and skid steering. The moto ...

Many of us have considered buying an air hockey table, but are put off by the price. And even if the money is there, those things take up a lot of space. How often are you really going to use it? This DIY air hockey table is the answer. It’s big enough to be fun, but small and light enough to easily stow away in the off-season. At ~$50, it’s a cheap build, provided you have a vacuum cleaner that can switch ...

As you might already know, Arduino is a compact microcontroller (programmable circuit board) and software combination that can be used as the basis for building a variety of electronic devices. While tech enthusiasts have been using Arduino to create fun and interesting inventions as a hobby, many entrepreneurs and corporate leaders haven't yet realized how this device can be used to create unique business ...

4 Channel 2 core twisted pair remote controller built using PT2262, PT2272-M4 IC from Princeton technology and MAX485 IC from Maxim. PT2262 is an Encoder (Transmitter), PT2272-M4 Decoder (Receiver) and MAX485 works as bridge for twisted pair communication between encoder and decoder. The receiver provides 4 channel Momentary outputs. All outputs are TTL level and can be interfaced with other circuits or rel ...

In the world of outdoor broadcast, what do you do when you have an event in South Africa one day, and – let’s say – in the UK the next? It would be a logistical nightmare, not to mention expensive, to ship an OB van with all its kit and a whole production crew between locations in such a short space of time. We spoke to broadcast services specialist, Timeline TV, about the innovative remote production solut ...

The infrared remote control might not hold the seat of honor in the average home theater setup that it once enjoyed, but it’s not quite out to pasture yet. After all, what are you going to use to stop Netflix once the Chromecast invariably disconnects from your phone? As long as there are devices out there that will respond to commands blasted their way via an IR LED, hackers will be looking to get in on th ...

Controlling a robotic arm to pick up and drop objects is difficult enough, without IoT it would be near impossible to do this remotely. Things used in this project Hardware components Arduino MKR1000 × 1 Software apps and online services MATLAB Arduino IDE Hand tools and fabrication machines Laser cutter (generic) Story Introduction I really wanted to try was designing a robotic arm completely from scratch. ...

This project will allow you to control someone through the internet using the MKR1000 and Electric Muscle Stimulation also known as EMS. Things used in this project Hardware components General Purpose Transistor NPN × 2 Arduino MKR1000 × 1 Icy Hot Smart Relief Back and Hip Starter Kit × 1 Female Pin Headers × 1 Adafruit Lipo Battery 1200 mAh × 1 Pocket Solder- 60/40 Rosin Core 0.031" diameter × 1 Double-sid ...

Engineers at the University of Bristol have developed a three terminal pico-power chip that can cut standby drain in sensor nodes – even compared with today’s low-power microcontrollers. It does this by replacing the low duty-cycle sleep-wake-sleep pattern used on MCU-based sensor monitors, with ‘off’. A voltage detector powered by the sensor – there is no other power source – starts the processor when the ...

Some time ago I passed comment in here about converting an ESP-01 to 32Mb (or 4MB). And here it is in the flesh – a 32Mb ESP-01 – and also – at last - Sonoff Upgrades. Now, why would you want to do all of that? I would suggest only if you happen to have lots of ESP-01 units lying around – and I’ll bet quiet a lot of you do. As for the Sonoffs – well, put it this way, I just ordered another 10 chips! I stopp ...

4 Channel RF remote built using PT2262 and PT2272-M4 IC from Princeton technology. PT2262 used as Encoder (Transmitter) and PT2272-M4 Decoder (Receiver) ICs are heart of the project. The receiver provides 4 channel Momentary outputs. All outputs are TTL level can be interface with other circuits or relay board. Transmitter works with 5V to 12V DC. Receiver works with 5V DC. When any of SW1-SW4 (S1-S4) tact ...

Need to organize your coins? Get some help with this project. Things used in this project Hardware components Arduino MKR1000 × 1 ATX Power Supply × 1 Adafruit coin acceptor × 1 Adafruit Proto Screw Shield × 1 Adafruit GRAPHIC ST7565 POSITIVE LCD (128X64) WITH RGB BACKLIGHT + EXTRAS × 1 Adafruit LOCK-STYLE SOLENOID - 12VDC × 1 Seeed BADGEr_v4 × 1 Resistor 330 ohm × 3 Resistor 22.1 ohm × 1 Capacitor 10 µF × ...