temperature sensor for android

follows: SensorManager. SENSOR_DELAY_FASTEST:The fastest, with the lowest latency. This frequency is recommended only for applications that are particularly dependent on sensor data. SensorManager. SENSOR_DELAY_GAME:Suitable for games. This frequency is suitable for general practical applications. SensorManager. SENSOR_DELAY_NORMAL:Normal Frequency. Generally, applications with low real-time requirements are suitable for use. SensorManager. SENSOR_DE

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

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

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

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

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

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

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

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 /*******************************************************

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

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_