precision position sensor

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 /************************************************************************************************************* * FileName: am2305.c * function: STM32 AM2305 high

-precision optical pulse sensor. From electrical signals to physiological signals, a new value space for smart hardware is being opened.Unique optical pulse-BO sensorRohm Roma Semiconductor is a well-known global semiconductor manufacturer, since its inception in Japan in 1958 after half a century of development has become a global system IC and leading semiconductor manufacturers, products involved in IC,

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 /************************************************************************************************************* * File name: am2305.c * Function: STM32 AM2305 high

);I2c_putbyte (0x06); Intcn=1,a2ie=1,enable interrupts, Alarm 2 outputI2c_putbyte (0x0);I2c_stop ();}I'm using the alarm 2, the hourly output is interrupted To turn off the corresponding alarm interrupt output (a2ie=0) After the interrupt is triggered void Perhour_extint1 () interrupt 2 using 1 {EX1 = 0;Ds3231_disable_alarm2 ();......}void Ds3231_disable_alarm2 (){I2c_start ();I2c_putbyte (Ds3231_write);I2c_putbyte (Ds3231_control);I2c_putbyte (0x4); Intcn=1,a2ie=0,I2c_putbyte (0x0

The Android platform provides two sensors to determine the location of the device, and these two sensors are magnetic field sensors and directional sensors. The Android platform also provides sensors (proximity sensors) that measure the distance from the front of a device to a nearby object. magnetic field sensors and proximity sensors are hardware-based sensors. Most Android phones and tablets have magnetic field sensors. Proximity sensors are often common in mobile phones. Because you can use

First of all, the gyroscope sensor needs to be debugged in the real machine environment, the PC end has no effect.1. Get the SensorThe devicemotion event is monitored on the window, and the accelerationincludinggravity (built-in gravitational acceleration sensor) object is obtained through the event object. The code is as follows:function (e) { var motion = e.accelerationincludinggravity; var

taken out, and the operation ends. The answer is 00201, sorted out is 201. Second, storage mode Practice down for convenience, the lowest bit exists in the first place of the array, the highest bit of the last one, is the easiest to write the program, the reason is very simple, because every time from the lowest bit start, and multiplication is obviously more convenient. I generally use a struct to represent a high-precision number, which has an arr

2123456 1123456 2 123...456152...936 ProblemSEtter:shamim HafizAlternate solution:janeAlam JanTest instructions: The first three digits of n^k and the three digits at the endIdea: At the end of the three-digit direct fast power + modulus can beBecause the three-digit number at the end is determined only by the three-digit number at the end of the operationAnd the first three digits can be perceptual cognition only by the first n digits of the operation process,