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,
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
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
thisexampleFunctions can also handle negative numbers, such asy = map (x, 1, 50, 50,-100);is also valid and works well.Also effective and correctThe map () function uses integer math so would not be generatefractions when the math might indicate that it should does so. Fractional remainders is truncated, and is not rounded oraveraged.The map () function uses integral types, so no fractions are generated, and fractions are truncated, not full or average (?). )Parameters parametersValue:the numbe
; //after a frame time delay, go to the next frame if(Millis ()-Lasttick >=framedelayms) {Lasttick=Millis (); ++frame; if(Frame >=frame_num) FRAME=0; } showarrpic (Man[frame]);}//display the picture represented by the arrayvoidShowarrpic (Const bytearr[]) { for(unsignedChari =0; i i) {digitalwrite (Latchpin, low); Shiftout (Datapin, Clockpin, Lsbfirst, (byte) arr[i]); Shiftout (Datapin, Clockpin, Lsbfirst, (byte) row[i]); Digitalwrite (Latchpin, high); }}No painting, this is all manual
OverviewDemonstrates the control of a unipolar stepper motor. Without a ready-made H-bridge module, the bipolar stepper motor does not experiment.There is no use of the stepper library, rough primitive drive with IO, more understanding of stepper motor drive.Example program full-step driver----------------------------------------------------------------------------//Unipolarsteppertest_ fullstep.ino////Created 2015-06-27//by Seesea Half-Step Drive ------------------------------------------------
The entire tutorial makes an HTTP client for uploading Yeelink data points.1 Get Account http://www.cnblogs.com/imfanqi/p/4419915.html2 Code Tutorial http://www.windworkshop.cn/?p=1217#include Arduino IDE for ESP8266 Tutorial (iii) HTTP client
Analogread (), and the detected voltage (0-5V) is mapped to a digital (0-1023) by a number-to- analog conversion technology (ADC) .
If the output of the piezoelectric element exceeds a certain limit value (indicating that the vibration has reached a certain strength) your board will be output through the serial port "detected vibration." "This string to the computer.
You need to open the serial monitor to see the effect. complete the hardware device required for this example An
the problem may occur. The system installs the basic use software, Sogou Input method, Smplayer,tweak and so on, the robot software has the gazebo, has loaded the necessary model storehouse, avoids because the network problem appears the space map the situation; V-rep's edu version, install Rosby example and Learningros for Robotics Programming-second Edition all the libraries, including Opencvnon-free. All software and data in the mirror are copyrighted to the original author.
http://wiki.ro
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