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A different selection at every visit: new arrivals and products from our catalogue
Our guides
Bench sheets: short guides with diagrams, free to download, print and share.
Wemos D1 mini: first steps
From the pinout to a small station showing time, date, temperature, humidity and pressure on an OLED display. For absolute beginners: hardware, software and firmware, with Arduino IDE or VS Code.
The multimeter: measuring voltage and current
Voltage is measured in parallel, current in series. It looks like a detail, but it is the difference between a reading and a blown fuse.
LEDs: forward voltage and series resistor
Each colour has its own voltage drop. Ohm’s law gives the right resistor for 3.3, 5, 9 and 12 V.