PWR-SWITCH is optically isolated EU style power load switch for up to 3500W, 230VAC/16A and can be driven with any microcontroller, Arduino, EPS32, or Linux computers directly with 3-24V

PWR-SWITCH hides the high voltage problems from the Arduino, ESP32, Raspberry Pi, Beaglebone, OLinuXino developers. It has 1500VAC optically isolation and can drive high voltage up to 230VAC / 16A loads safely.

To switch On or Off the loads from 3 to 24VDC can be used, so you can drive the loads with any microcontroller only 1mA is necessary to trigger the switch.

PWR-SWITCH is with EU stype plug and receptacle, so to use it in US or in UK you will need some of these:US to EU adapter, EU to US adapter or UK to EU adapter.

 PWR-SWITCH has CE-EMC and LVD certification.

Green LED show the switch status.

MOD-IO got beautiful DIN rack plastic enclosure from Giuseppe Mascolo

We noticed this Twitter post from Giuseppe Mascolo @linuxpeppe
He designed beautiful plastic enclosure for MOD-IO which could be attached to DIN reel:

the design files are uploaded to Thingiverse


New Open Source Hardware board released: BB-TB6612 Dual DC motor controller with PWM to drive small robot cars with 12V up to 1.2A motors

BB-TB6612b

BB-TB6612 is dual channel DC motor controller board it is nice add on for the Robot chassis we have ROBOT-2WD-KIT , ROBOT-2WD-KIT2 , ROBOT-2WDL-KIT , ROBOT-3-WHEEL-KIT and can drive these gear motors: MG-6-120 , MG-6-48  and MG-6V-1:380

The digital logic can be from 2.7 up to 5.5V. The motor voltage can be from 2.5 up to 13.5V.

PWM, CW, CCW, brake-stop, stand-by modes are implemented.

 

Gear motors and accessories for building robot cars are in stock

MG-12V-DE5

We got some new toys in stock for robot builders. The MG-12V-1:100-DE and MG12V-1:380-DE are gear motors for robot cars, working at 12V with 78 RPM and 300 RPM . Both have digital encoders which give two channel feedback for the rotation speed, used for identifying the speed and rotation direction. The MG-12V-1:100 and MG-12V-1:380 are lower cost alternatives to those motors but without encoders.

These motors can be attached to a flat surface with MG-FIX.

MG-FIX

The MG-WHEEL-43mm are rubber wheels with diameter 43mm and a width 19 mm which attach directly to MG-6V and MG-12V gear motors.

MG-WHEEL-43mmb

The MG-WHEEL-65mm is rubber wheel with diameter 65mm and width 25mm. It requires a special MG-COUPLER.

MG-WHEEL-65mmd

 

COVID-19 quarantine projects to try with eduArdu while at home :)

Keep social distance while drinking with friends 🙂

No this is not an eduArdu project, but it is still fun to implement.

The eduArdu Social Distance project is using the onboard Ultra sound distance meter and beeps with its buzzer when someone comes closer than 1.5 meters from you.

The eduArdu Infrared Thermometer project uses MOD-IR-TEMP and scans surface temperature from a distance of few centimeters. If the read temperature is above 38 C it will beep with the buzzer to warn you.

eduArdu-IR

Both projects are easy to implement together with your children.

Programming with open source hardware educational board eduArdu and Scratch 3

Screenshot from 2019-07-29 14-52-10

New demo code which transforms eduArdu in Makey Makey and tutorial how to use with Scratch 3 is uploaded to GitHub.

Here is the result from above code:

eduArdu OSHW educational board new demo and tutorial updated on GitHub

eduArdu-3

The eduArdu-BotKit demo is uploaded on GitHub. This code control the robot with sound.

New LED_Matrix_Light library is uploaded. It contains only Clear, SetPixel, GetPixel, ClearPixel, Line, DrawRectangle, UpdateMatrix functions and do not take lot of memory like the LED_Matrix library which contains text scrolling and fonts.

Two more demo for capacitive buttons are add. One make sound depend on capacitance, the other prints the value of the capacity measured.

Programming eduArdu with Arduino explains how to install Arduino and some basics of programming for beginners, like what are arrays, variables, etc. It may be used as practice of what is learned in C/C++ class in school.

eduArdu-BotKit transforms your eduArdu in small bot

eduArdu-4

eduArdu-BotKit consist of two continual rotation servo motors, two 32mm wheels, ball wheel and converts eduArdu in small robot:

eduArdu-3

Here is small video clip of small demo how to control eduArdu robot with clap of your hands.

OSHW High precision calibrated digital air quality CO2, temperature, humidity, air pressure sensor board with UEXT connector

MOD-ENV4

Analog gas and air quality sensors have quite negligent readings. They need special calibration to measure correctly.

This is why CCS811B digital air quality sensor by AMS is so interesting. It can measure indoor air quality and CO2 content with digital readings from 400 up to 29206 ppm.

MOD-ENV has CCS811B and BME280 digital precise temperature, humidity and air pressure sensor assembled together. Both operate through I2C and are low power with sleep modes which makes them perfect for enviroment monitoring and IoT.

ESP32-POE, ESP32-POE-ISO, ESP32-EVB has UEXT connectors and can directly connect to MOD-ENV.

The price of MOD-ENV is between EUR 14.36 and 15.95 depend on quantity.

If you need more memory and micro SD card for your Arduino project -OLIMEXINO-2560 is with 256K Flash and SD card on board

OLIMEXINO-2560

OLIMEXINO-2560 is Arduino Mega2560 like board which keeps ports conversion but adds UEXT connector to connect our wide range of modules and sensors, works on 5V and 3.3V, and has on board micro SD card for file storage and logging.

Power supply uses DCDC convertor with input range 6-15VDC when OLIMEXINO-2560 works on 5V and 5-15VDC when OLIMEXINO-2560 works on 3.3V.

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