beaglebone temperature sensor

bit per word then the speed to BMP280 the upper limit of 10MHz, and then with the Read method, two xfer thrown in, a write 0xD0, representing I want to read the ID Register, one is read buf2, return Buf2 to main and print it out. Read inside the bitwise OR is to make sure bit 7 is 1, lest I hit the wrong address incorrectly to manipulate the write. Effect:Return 0x58,id is correct.SPI Write BMP280 Register, read current temperatureBMP280 Ctrl_meas Write value, continuous measurement, the highes

Physical map650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/8B/2F/wKioL1hGsMORxBttAAJMGUmukvs286.png "title=" Am2320.png "alt=" Wkiol1hgsmorxbttaajmgumukvs286.png "/>Pin diagram650) this.width=650; "src=" http://s5.51cto.com/wyfs02/M00/8B/33/wKiom1hGsM-Db6GDAADX2K1req8130.png "title=" pin. png "alt=" Wkiom1hgsm-db6gdaadx2k1req8130.png "/>Wiring diagram650) this.width=650; "src=" http://s2.51cto.com/wyfs02/M01/8B/33/wKiom1hGsN7i8SMAAAGFqcnBRuE198.jpg "title=" Img_ 20161206_203345.jpg "

Marlin Temperature Sensor correction Use of type-k temperature designWill probe crawl kidnapped on the side of the heaterStart Marlin-marlin_v1\marlin\thermistortables.hTo modify the temperature of the response table in line 10thConst short TEMPTABLE_1[][2] Progmem = {After this line of workThe

Measure the ambient temperature around the chip. The output voltage of the temperature sensor is proportional to the temperature. The obtained temperature is measured by ADC. Inside the chip, the temperature

Lm35 is a precision temperature sensing IC series released by US National Semiconductor (later acquired by TI). Its signal output mode is analog output, and the output voltage value is proportional to the Celsius temperature value, the user can obtain high measurement accuracy without any extra correction. Its main features include: Power supply voltage: 4 ~ 30 V Measurement Range: Related to the chip. T

Temperature Sensor driving based on ARM-LINUX (1) Author: Feng Jian,Hua Qing vision embedded college lecturer. DS18B20 digital temperature sensor wiring is convenient, encapsulated into can be used in a variety of occasions, such as pipe type, threaded type, magnet Adsorption Type, stainless steel encapsulation type, a

Recently used temperature and humidity sensor, AM2305 drive, single bus, after power on at least a delay of 2S to read temperature and humidity, temperature accuracy is high, with the same as DS18B20, data with calibration, will not appear ds18b20, and timing requirements are not high /*******************************

) = = GPIO. Low: Continue While gpio.input (channel) = = GPIO. High: K + = 1 if k > : Break If K 8: Data.append (0) Else: Data.append (1) J + = 1 Print "sensor is working." Print Data #输出初始数据高低电平 Humidity_bit = data[0:8] #分组 Humidity_point_bit = data[8: +] Temperature_bit = data[: Temperature_point_bit = data[: +] Check_bit = data[: Humidity

If you want to use the Arduino Development Board drive DHT11 to obtain temperature and humidity, it is recommended to use a third-party library, which can speed up the development of the program, and is not prone to error, the following code I have been transferred to the third-party library. For detailed installation methods, please refer to the Geek Pioneer's blog: The http://www.cnblogs.com/jikexianfeng/p/6290203.html author installs the minimum ve

Demand:Read the value of the embedded temperature sensor. Known conditions:* The temperature sensor has been welded on the motherboard.* Temperature Sensor Model LM75*linux Drive, in linux-2.6.20.21/drivers/hwmon/lm75.c* The circu

functionNvic_prioritygroupconfig (nvic_prioritygroup_2);//set interrupt Priority group to group 2:2-bit preemption priority, 2-bit response priorityUart_init (115200);//serial port initialized to 115200Led_init ();//initializing the hardware interface to the LED connection while(Dht11_init ())//DHT11 Initialization{printf ("DHT11 error\r\n"); Delay_ms ( the); } while(1) { if(t% -==0)//Read once per 100ms{dht11_read_

devices can be hung on the bus, with different device addresses to access different devices. Similarly, the 1-wire bus can hang multiple devices, but it has only one line, how to differentiate between different devices. There is a unique 64-bit long serial number inside each DS18B20, and this serial number value exists in the DS18B20 internal ROM. The first 8 bits are the product Type code (DS18B20 is 0x10), and the next 48 bits are the unique serial number for each device, and the last 8 bits

SI7021 is a temperature and humidity sensor chip produced by Silicon Labs. Its main features: Humidity accuracy: Error typ. +/-2%RH, Max +/-3%rh (0~80%RH), factory corrected Temperature accuracy: Error typ. +/-0.3%°c, Max +/-0.4%°c ( -10°c~85°c), factory corrected Measuring range: Temperature range 0~1

waiting for temperature sensor response (will pull down the data cable when responding to the data sheet temperature sensor) for(i =0; i ) {counter=0; while(Digitalread (gpioport) = = lststate) {//If the current level is equal at this point, the level does not change, so continue waiting for the next cyclecounter++;d

AM2321 is a digital temperature and humidity sensor in Guangzhou ausone electronics production. Although it is a domestic brand, its precision can be comparable with foreign mainstream temperature and humidity sensing IC. Size: 11.3x7.8x4mm (L x W x H) Package: 0.05 pitch PTH Operating voltage: 2.6~5v Interface: i²c, maximum rate 100kbps, wit

Recently used in the temperature and humidity sensor, AM2305 drive, single bus, on the power of at least 2S to read temperature and humidity, temperature accuracy is high, like DS18B20, data with the checksum, will not appear ds18b20, and the timing is not high /*******************************************************

Temperature Sensor + I2C + Serial Port + PC (pyserial) Example The example is a bit messy, mainly for learning: Temperature sensor DS18B20, E2PROM, I2C, serial port read/write, PC (pyserial) Data Display SerialPort. py PC serial host program, you can set the maximum alarm te