VL53L0X激光测距传感器.ESP32使用篇
昨天对传感器的使用,还缺一个ESP32.这里补一下
首先把网站贴上
然后安装
注意这里的串口的打印波特率,错了会乱码
注意选对串口
https://github.com/espressif/arduino-esp32项目使用了 221281 字节，占用了 (16%) 程序存储空间。最大为 1310720 字节。全局变量使用了16092字节，(4%)的动态内存，余留311588字节局部变量。最大为327680字节。esptool.py v2.6Serial port COM4Connecting.....Chip is ESP32D0WDQ6 (revision 1)Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme NoneMAC: f0:08:d1:d1:7d:c4Uploading stub...Running stub...Stub running...Changing baud rate to 921600Changed.Configuring flash size...Auto-detected Flash size: 4MBCompressed 8192 bytes to 47...Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds (effective 5461.4 kbit/s)...Hash of data verified.Compressed 15856 bytes to 10276...Wrote 15856 bytes (10276 compressed) at 0x00001000 in 0.1 seconds (effective 991.0 kbit/s)...Hash of data verified.Compressed 221392 bytes to 114130...Wrote 221392 bytes (114130 compressed) at 0x00010000 in 1.7 seconds (effective 1065.0 kbit/s)...Hash of data verified.Compressed 3072 bytes to 128...Wrote 3072 bytes (128 compressed) at 0x00008000 in 0.0 seconds (effective 1638.4 kbit/s)...Hash of data verified.Leaving...Hard resetting via RTS pin...#include <Wire.h>
void setup() { Wire.begin(); Serial.begin(115200); Serial.println("\nI2C Scanner");} void loop() { byte error, address; int nDevices; Serial.println("Scanning..."); nDevices = 0; for(address = 1; address < 127; address++ ) { Wire.beginTransmission(address); error = Wire.endTransmission(); if (error == 0) { Serial.print("I2C device found at address 0x"); if (address<16) { Serial.print("0"); } Serial.println(address,HEX); nDevices++; } else if (error==4) { Serial.print("Unknow error at address 0x"); if (address<16) { Serial.print("0"); } Serial.println(address,HEX); } } if (nDevices == 0) { Serial.println("No I2C devices found\n"); } else { Serial.println("done\n"); } delay(5000); }将ESP32与Arduino IDE搭配使用时，默认的I2C引脚为 GPIO 22 （SCL）和 GPIO 21 （SDA）
懂？
以上的程序是对打印i2C所在的地址
拔了i2c的器件,就没有了.插上就又可以打印出来.程序我就不分析了.以后分析
ESP32使用不同的I2C引脚（更改默认I2C引脚）
使用ESP32，你几乎可以将任何引脚设置为具有I2C功能，你只需要在代码中进行设置即可。
当将ESP32与Arduino IDE搭配使用时，请使用 wire库以使用I2C与设备通信。使用此库，你可以按以下方式初始化I2C：
Wire.begin(I2C_SDA, I2C_SCL);
因此，你只需要在驱动器上设置所需的SDA和SCL GPIO即可。 I2C_SDA 和 I2C_SCL 变量。具体驱动这个的方法看我下面的文章
这个地方,你需要将引脚地址指定
项目使用了 223345 字节，占用了 (17%) 程序存储空间。最大为 1310720 字节。全局变量使用了16132字节，(4%)的动态内存，余留311548字节局部变量。最大为327680字节。esptool.py v2.6Serial port COM4Connecting........_Chip is ESP32D0WDQ6 (revision 1)Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme NoneMAC: f0:08:d1:d1:7d:c4Uploading stub...Running stub...Stub running...Changing baud rate to 921600Changed.Configuring flash size...Auto-detected Flash size: 4MBCompressed 8192 bytes to 47...Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds (effective 5957.9 kbit/s)...Hash of data verified.Compressed 15856 bytes to 10276...Wrote 15856 bytes (10276 compressed) at 0x00001000 in 0.1 seconds (effective 998.8 kbit/s)...Hash of data verified.Compressed 223456 bytes to 115392...Wrote 223456 bytes (115392 compressed) at 0x00010000 in 1.7 seconds (effective 1049.7 kbit/s)...Hash of data verified.Compressed 3072 bytes to 128...Wrote 3072 bytes (128 compressed) at 0x00008000 in 0.0 seconds (effective 2234.2 kbit/s)...Hash of data verified.
Leaving...Hard resetting via RTS pin...
/*! * @file DFRobot_VL53L0X.ino * @brief DFRobot's Laser rangefinder library * @n The example shows the usage of VL53L0X in a simple way.
* @copyright [DFRobot](http://www.dfrobot.com), 2016 * @copyright GNU Lesser General Public License * @author [LiXin] * @version V1.0 * @date 2017-8-21 * @https://github.com/DFRobot/DFRobot_VL53L0X timer*/#include "Arduino.h"#include "Wire.h"#include "DFRobot_VL53L0X.h"
/*****************Keywords instruction*****************///Continuous--->Continuous measurement model//Single------->Single measurement mode//High--------->Accuracy of 0.25 mm//Low---------->Accuracy of 1 mm/*****************Function instruction*****************///setMode(ModeState mode, PrecisionState precision) //*This function is used to set the VL53L0X mode //*mode: Set measurement mode Continuous or Single //*precision: Set the precision High or Low//void start() //*This function is used to enabled VL53L0X//float getDistance() //*This function is used to get the distance//uint16_t getAmbientCount() //*This function is used to get the ambient count//uint16_t getSignalCount() //*This function is used to get the signal count//uint8_t getStatus(); //*This function is used to get the status//void stop() //*This function is used to stop measuring
DFRobotVL53L0X sensor;
void setup() { //initialize serial communication at 9600 bits per second: Serial.begin(115200); //join i2c bus (address optional for master)// Wire.begin(); Wire.begin(21, 22); //Set I2C sub-device address sensor.begin(0x50); //Set to Back-to-back mode and high precision mode sensor.setMode(Continuous,High); //Laser rangefinder begins to work sensor.start();}
void loop() { //Get the distance Serial.print("Distance: ");Serial.println(sensor.getDistance()); //The delay is added to demonstrate the effect, and if you do not add the delay, //it will not affect the measurement accuracy delay(500);}改正了引脚就好了
这个是默认的I2C的引脚,看连接
https://github.com/SmartArduino/SZDOITWiKi/wiki/Programming-with-Lua放大的引脚位置
然后进行更改引脚
成功使用
这个地方没有看懂
注意看宏定义,两个引脚
这个地方是我把TT拿出来了,改了引脚.上传倒是成功了.
项目使用了 223345 字节，占用了 (17%) 程序存储空间。最大为 1310720 字节。全局变量使用了16132字节，(4%)的动态内存，余留311548字节局部变量。最大为327680字节。esptool.py v2.6Serial port COM5Connecting........_Chip is ESP32D2WDQ5 (revision 1)Features: WiFi, BT, Dual Core, Embedded Flash, VRef calibration in efuse, Coding Scheme NoneMAC: b4:e6:2d:80:e8:45Uploading stub...Running stub...Stub running...Changing baud rate to 921600Changed.Configuring flash size...Auto-detected Flash size: 2MBCompressed 8192 bytes to 47...Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds (effective 10922.6 kbit/s)...Hash of data verified.Flash params set to 0x021fCompressed 15856 bytes to 10276...Wrote 15856 bytes (10276 compressed) at 0x00001000 in 0.1 seconds (effective 1048.3 kbit/s)...Hash of data verified.Compressed 223456 bytes to 115390...Wrote 223456 bytes (115390 compressed) at 0x00010000 in 1.6 seconds (effective 1128.6 kbit/s)...Hash of data verified.Compressed 3072 bytes to 128...Wrote 3072 bytes (128 compressed) at 0x00008000 in 0.0 seconds (effective 3510.9 kbit/s)...Hash of data verified.
Leaving...Hard resetting via RTS pin...
但是输出的是乱码...
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