arduino textbook

Arduino Open Source Library u8glib2 research icon display-----------------on the use of DRAWXBM drawxbmp functionBecause of whim, recently want to do a snake game, the hand has Arduino and our own development of Newbit OLED Shield, hardware completely satisfied, so in the online search, found a lot of people in use U8glib, now has a second version of U8GLIB2, The first version has stopped maintenance, but t

+-0.08 °C. Encapsulation: To-92, metal can, SOIC-8, to-220. The lm35d used in this article is the to-92 encapsulation. Circuit connection The lm35d is powered by 5 V voltage on the Arduino uno board, and the signal output end is connected to the A0 pin. Simple voltage reading and conversion The conversion is implemented using the Arduino ADC function. The relationship between the voltage and the ad sample

case, any addressable device is considered as a slave device. II2, or I2C, is used in arduino. > Host program example # Include Wire. h gt; // declare the I2C library file # define LED 13 byte x = 0; // variable x determines the LED light-off // initialize void setup () {Wire. begin (); // Add the i2c bus as the host pinMode (LED, OUTPUT); // set the number Port 13 to the OUTPUT} // The main program void loop () {Wire. beginTransmission (4); // sen

Espcomm_send_command:didn ' t receive command Responseespcomm_send_command (flash_download_begin) failed I now have two boards that have this problem, and I've been trying to solve this problem for a long time. There is no similar problem at all in domestic articles. Constantly try online solutions, mainly because their English level is too poor to view foreign documents, quite labored. 4 o'clock in the morning I get up and start to make, finally in my constant try, I finally solved the problem,

If you are using a compact Windows system, you may encounter the problem of "system cannot find the specified file" When installing the Arduino driver, as shown in the following figure: This is because the compact window system deletes some of the less commonly used driver information, and the workaround is as follows: 1. First Open C:windowsinfsetupapi.dev.log This file contains information about Plug and Play devices and driver instal

Protocol parser V1.0 parsed data format: protocol header-Instruction length-control instruction-checksum "control instruction" format: Device Type-device number- Port number */#include ProtocolParser.cpp source code is as follows: /* Protocolparser the implementation of the functions of the class * * #include "ProtocolParser.h"//#include In order to verify the correctness of the code, there are two ways, one is to import it into the Arduino IDE, for

Laser Tube Transmitting module Laser receiving module Experimental Results BOM List Arduino Uno * * Laser Tube Transmitting Module * * Laser Receiving Module * * Bread Plate Jumper several Wiring Arduino Uno Pin 5V GND Arduino Uno Open Source Code int LED = 13; Defines the LED pin as 13 (i.e. the LED light on the board) int laser

Bo Master's first article, Hope Toto support. 1, the first is the wiring. VCC corresponds to Arduino Development Board 5V GND Connection Gnd TXD Connect TX Rxd receiving RX GPI00 Connect Gnd (This is uploaded when used, upload must be grounded, otherwise it will cause upload failure) Wiring is not very simple. Attach a picture 2. Then download the Esp8266 extension library. Open the IDE and click File--preferences, as shown in Fill this URL into t

/* sweep*/#include Original address: http://jt.satxt.com/arduino/arduino-d-j-sg90-d-w-q-s-x-z-d-f-x-k-z.htmlArduino Servo SG90 potentiometer for rotational direction control

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, with special timing requirements Resolution: Temperature 0.1°c, relative humidity 0.1%rh Accuracy: Temperature error +/-0.3°c at r

The adk Board (a board) released by Google was designed with reference to the Arduino Board (M board). Let's see what's different. Adk Arduino mege2560 Power Supply Lt3480edd # PBFLP2985-33DBVR MC33269D-5.0LP2985-33DBVR MCU ATMEGA2560-16AU ATMEGA2560-16AU USB to serial port FT232RL-REEL Atmega8u2 USB Host Max3421eetj + None

Description Reads the value from the specified analog pin. the Arduino board contains a 6 channel (8 channels on the mini and nano, 16 on the mega), 10-bit analog to digital converter. this means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023. this yields a resolution between readings of: 5 V/1024 units or ,. 0049 Volts (4.9 mV) per unit. the input range and resolution can be changed using analogreference

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 0~100%rh, maximum temperature range -40°c~125°c Operating voltage: 1.9~3.6v Low power consumption: Low 150μa at work, 60nA at standby Interface: I²C, maximum rate support

To open a Web site: Https://www.arduino.cc/en/Main/Software Then go to the software download: Https://www.arduino.cc/en/Main/Donate Finally choose the right software to download: Choose just DOWNLOAD here, of course, you can also play a reward. After the download is complete, you can find the following version file: Arduino-1.8.2-windows.exe This is the latest version and will be updated as time progresses. When you insert the

This blog tells me the idea and implementation of using Arduino to parse and forward raw NEMA 0813 data. Because Arduino is relatively simple, can not realize the serial data receive interrupt, so are written in the main loop inside. Do not know what flaws and loopholes in the code, you are welcome to criticize correct. GPS Software Requirements · Ardiuno Software · Monitor serial 1 to receive data. · Da

Arduino MQ135 Gas Sensor first, the wiring The MQ135 has 4 pins, VCC, GND, A0, D0, respectively, where VCC, GND, and A0 are required. The following diagram is a esp8266 wiring diagram. Due to the measurement of the gas value of PPM, it is related to the air temperature and humidity. So we've added a DHT22 here. DHT22 Portal vcc->3v Gnd->g A0->a0 Second, MQ135 library Download Address: https://github.com/zhao007z4/MQ135 After the download is complete,

Bh1750fvi is a digital ambient optical sensor IC produced by Rohm semiconductor in Japan. Its main features include: I2C digital interface, supporting a maximum rate of 400 kHz Illuminance) Measurement Range: 1 ~ 65535 Lux, minimum resolution Power down Shielding illumination variation interference caused by 50/60Hz Mains Frequency Two I2C addresses are supported and selected through the ADDR pin. Small measurement error (maximum precision error +-20%) Circuit connection Because the modu

); Kinect = new Simpleopenni (this); Kinect.enabledepth ();}Fourth step: Under 3D rendering, draw the point cloud and the frustum (that is, the 3D area visible on the screen. The Kinect frustum means the area that Kinect can see in space. ）void Draw () { kinect.update (); Background (0); Myorbit.pushorbit (this); Drawpointcloud (); Kinect.drawcamfrustum (); Myorbit.poporbit (this);}Fifth step: Finish plot point cloud functionvoid Drawpointcloud () { int[] Depthmap =

Summarize the experience of wireless module debugging. There are already people on the Arduino who have made the library of this module, but according to the manual written also has a certain reference significance.Wireless module is one of the modules that I think is more difficult to debug, because it is a module of mutual interaction, communication failure has two reasons, can not be found from a single code. The code is written, and all sorts of i

I. List of components Arduino Pro Mini GY-30 Second, the wiring Using IIC communication mode, GY-30VCC connect +5v,gnd grounding. GY-30 SDA, SCL respectively A4, A5 Third, the source code #include