The system uses TI's MSP430F149 microcontroller as the core controller. This microcontroller has a 16-bit CPU integrated register and constant generator, which can maximize the code efficiency of the microcontroller. It integrates JTAG and supports online programming; two universal full-duplex Serial synchronous/asynchronous communication interface; PWM control output; external interrupt input interface. The microcontroller is responsible for sampling the bus door opening and closing signals, turning on or off the infrared counting module, recording the number of people getting on and off at each bus stop, storing the data on the number of people getting on and off at each bus stop, and transmitting the stored data to the computer.
Apple's full series of drawings: iPhone 5s Chinese schematic + component distribution diagram
Contains all design information
Detect whether there is smoke and flammable gas in the environment. If the above gases are present, send an alarm text message to the mobile phone.
When the temperature is lower than the set threshold, the corresponding indicator light lights up and the corresponding relay is closed. The relay can drive the load (fan, refrigeration plate, heating tube, etc.). When the temperature is higher than the alarm value, the sound and light alarm will sound. The keys are setting keys, plus key and minus key. The alarm value and temperature control range can be set, the temperature measurement range is 0 to 99.9 degrees Celsius, and the accuracy is 0.1 degrees Celsius.
Based on STM32 imitation Mitsubishi PLC design, including program and circuit diagram
Start by saying the keyword "Trash"
Share license plate recognition control board schematic + 3D PCB
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Special driver for fish machines, with totem variable drive
Traffic light control system principle design drawing