OLIMEXINO-STM32F3 is re-design of our popular OLIMEXINO-STM32 board.
What is new?
STM32F303RCT6TR is used which allow CAN and USB to work at the same time. The F1 Series of STM32 shared same buffer for both USB and CAN which leads to not be able to work with both CAN and USB at the same time. This is solved in F3 series
Increased amount of memory: 256KB Flash, 40KB RAM
Power supply is now from 4.2VDC up to 40VDC which allow OLIMEXINO-STM32F3 to work in Automotive applications without special power converters
Industrial temperature grade -40+85C
Real Time Clock backup battery holder for CR2032 Li battery
Lower cost
The price of OLIMEXINO-STM32F3 is EUR 14.95 for single unit and drops to EUR 11.96 for 50+ pcs order.
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.
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.
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.
The MG-WHEEL-65mm is rubber wheel with diameter 65mm and width 25mm. It requires a special MG-COUPLER.
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.
Both projects are easy to implement together with your children.
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.
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.
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