DATA 用于微处理器与 DHT11 之间的通讯和同步,采用单总线数据格式,一次通讯时间 4ms 左右。操作流程如下:数据分小数部分和整数部分, 一次完整的数据传输为 40bit,高位先出。数据传送正确时，数据=“8bit 湿度整数数据+8bit 湿度小数数据+8bit 温度整数数据+8bit 温度小数数据+8bit 校验和”。2 .1602
BREAKING: Change return type of RSSI() (#7657) BREAKING: Add Wrong Password wifi status case (#7652) BREAKING: analogWriteRange 8-bit default (#7456) BREAKING: HTTPClient: RequestHandler: Pass String by const reference (#6583) Boot eboot: .RODATA, upstream uzlib, move CRC, save 112 bytes...
"__INT_LEAST64_TYPE__=long long int", "__INT16_TYPE__=short int", "__INT_LEAST8_TYPE__=signed char", "__DEC32_MAX_EXP__=97", "__INT_FAST8_MAX__=2147483647", "__INTPTR_MAX__=2147483647", "__EXCEPTIONS=1", "__LDBL_MANT_DIG__=53", "__DBL_HAS_QUIET_NAN__=1",...
LEDC_TIMER_8_BIT) -1);//use 5000 Hz as a LEDC base frequency#defineLEDC_BASE_FREQ 5000//LED pins#defineLED_PIN_1 23//LED channel that will be used instead of automatic selection.#defineLEDC_CHANNEL 7voidpwmInit(){//配置PWM通道,频率,分辨率//Use single LEDC channel 0 for both pinsle...
(otherwise SPI is assumed) //#define TFT_PARALLEL_8_BIT //#defined TFT_PARALLEL_16_BIT // *** 16-bit parallel ONLY for RP2040 processor *** // Display type - only define if RPi display //#define RPI_DISPLAY_TYPE // 20MHz maximum SPI // Only define one driver, the other ones...
◇ 存储容量: 8Kbit ,16个分区,每分区两组密码 ◇ 工作频率: 13.56MHZ ◇ 通讯速度: 106Kboud ◇ 读写距离: 2.5—10CM ◇ 读写时间: 1-2MS ◇ 工作温度: -20℃-85℃ ◇ 擦写次数: >100000次 ◇ 数据保存: >10年 ◇规 格: 0.87×85.5×54/ 非标卡 ...
(8x) 模拟输出(0-10Vdc, 8bit ) / 数字输出(5-24Vdc) / PWM 独立输出(5-24Vdc) (10x) 独立数字输出接口 (5-24Vdc) 通讯接口 –(1x) 以太网接口 –(1x) USB 接口 (type B). –(1x) I2C 接口. (用于连接其它板卡,传感器、IO模块) –(3x) TTL 端口 –(1x) RS-232端口. –(1x) 半/全...
bool begin(const char * mountpoint="/sdcard", bool mode1bit=false) 挂载存储卡,输入参数分别为挂载点、是否使用一线模式; void end() 取消挂载; sdcard_type_t cardType() 返回存储卡类型,0、1、2、3、4,分别如下: CARD_NONE 未连接存储卡; ...
This table is for an 8-bit Arduino, types would be bigger on a 32-bit processor. TypeSize in bytes Parser<N> 8 x N JsonArray 4 JsonHashTable 4 Code size Theses tables has been created by analyzing the map file generated by AVR-GCC after adding -Wl,-Map,foo.map to the command li...
#if!defined(RPI_DISPLAY_TYPE)#define RPI_DISPLAY_TYPE #endif #endif// 意思是:为选定的显示器调用18位色彩。#if!defined(RPI_DISPLAY_TYPE)&&!defined(TFT_PARALLEL_8_BIT)&&!defined(TFT_PARALLEL_16_BIT)&&!defined(ESP32_PARALLEL)#ifdefined(ILI9481_DRIVER)||defined(ILI9486_DRIVER)||defined(ILI94...