This is battery level display module based on battery style digital tube LED. The 5 - segment LED inside is red light and the frame is green light. There is driver chip TM1651 onboard, so the control interface is simple, just two signal lines and VCC / GND. It can be used to display the battery power.
Module de détection de mouvement fortement intégré et fréquement utilisé pour détecter les entrées et la présence dans une pièce. Il peut ête utilisé avec n'importe quel micro controlleur, en incluant les arduino, msp430, stm32 ou autres stellaris.
This is a digital temperature sensor, that is already calibrated. The measurement is done where the sensor is, no need for long insulated wire or complicated ADC design.
This sensor is therefore also perfect for use with a Raspberry Pi, as it is not analogic, all the data is transmitted in digital One Wire protocol.
If you are searching an ultrasonic ranging module, the HC-SR04 is good choice: Its stable performance and high ranging accuracy make it a popular module in electronic market. It's cheaper than an IR range finder with similar range accurancy and distance.
This is a splittable 40 pin jumper wire, it is super flexible, can be transformed from 1-40 pin jumper wire. With some of these, you will no need to worry about the jumper wires you got before do not fit your project, just split it and go.
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