ElecFreaks je inovativní firma se specializací na vývoj Open Source Hardware a funguje od března 2011. Spolupráce s HW Kitchen trvá od srpna 2013. V počátcích byla firma Elecfreaks zaměřená hlavně na vývoj desek, shieldů a rozšiřujících modulů pro platformu Arduino. Řadu běžných Arduino věciček dokázali zajímavě doplnit a zlepšit jejich parametry. This sensor adopts the flexible nano pressure-sensitive material with an ultra-thin film pad. It is water-proof and pressure-sensitive.

Insert the micro:bit into keyestudio micro:bit sensor V2 shield.Then connect passive buzzer module to micro:bit sensor shield, connect the S pin to S0 pin header, + pin to V1 header, - pin to ground header. Buttons are a very common input device. Your micro:bit has two buttons you can program, and a reset button.Note: This product has been updated and replaced by one featuring the new micro:bit V2, available here. Done wiring and powered up, send the code to MICROBIT. When sensor detects the movement of someone nearby, 25 LED matrix of micro:bit will show the icon like a heart. Or else, it will show the icon like this. Insert the micro:bit into keyestudio micro:bit sensor V2 shield. Then connect the analog rotation module to keyestudio micro:bit sensor shield. Connect signal pin to P0, + pin to V1 header, - pin to ground. This keyestudio red LED module has 3 Pins; - pin is connected to ground, + pin is connected to VCC（3.3-5V）, S pin is for signal control; you can set the High or Low level to control the LED on and off. In this project, you will learn how to use our keyestudio photocell sensor and micro:bit to control the brightness of external light. Show the result on 5*5 LED of micro:bit or serial monitor of Arduino software.

In this experiment, the signal end of keyestudio Analog Rotation Sensor is connected to micro:bit P0. By reading the analog value of P0, rotate the potentiometer, you should see the analog value is changed on the micro:bit LED matrix. Rotate the potentiometer, you should get the value change shown on the LED matrix of micro:bit. Or you can open the serial monitor of Arduino IDE to get the value like this: We will take WINDOWS system as an example here. There are also two options under Windows system, one is installed version, the other is non-installed version. Pak stačí program nahrát do micro:bitu zmáčknutím tlačítka stáhnout. Pokud je micro:bit spárovaný s počítačem a všechno ostatní je v pořádku, měla by zablikat dioda pod usb portem micro:bitu (nahrání se říká flešnutí programu) a po nahrání by se měly diody střídavě po půl vteřině opakovaně rozsvěcet a zhasínat. Funguje to!when connect external sensor module to the shield for working,the operating current of AMS1117-3.3V and NCP1117ST50T3G chip is too large, so it is easy to get hot. Pay special attention to avoid touching the two chips and causing burns. The light breath experiment is a little bit similar to the previous project. This time we connect the keyestudio LED module to the sensor shield. Connect the Signal pin of LED module to P0 of micro:bit. From the Pinout diagram of microbit, you can get the P0 can be used as Analog IN. This lesson you will learn how to control the brightness of LED on the module, gradually becoming brighter and dimming, just like the LED is breathing. In real life, gas leakage events often occur. If toxic or flammable and explosive gas are leaked out, there exists a huge potential hazard to people’s health. So people have developed different kinds of sensors to detect various gas contents in the air, which can timely alarm to process the leaking gas. This analog sensor-MQ3 is suitable for detecting the alcohol. It can be used in a breath analyzer. It has a good selectivity because it has higher sensitivity to alcohol and lower sensitivity to Benzine.