DIYmall AS3935 Lightning Detector Sensor

What you need:
1PCS Arduino UNO
1PCS USB Cable
1PCS AS3935 Light Sensor
6P Female to Male Dupont Cable

Connection:
AS3935       Arduino UNO
VCC                   5V
GND                  GND
SCL                   A5
SDA                  A4
IRQ                    D5

First you need use IIC.ino to find the IIC address of the AS3935 sensor

Then you need change IIC address in the AE_AS3935DEMO-.ino, upload the code and open the serial monitor, please choose 9600 baud.
In my case, I changed the Line 11 and Line 66 to 0x03

11 #define AS3935_ADRS 0x03 66 Wire.write(0x03);

Below is the result

Code  link
https://github.com/PlayingWithFusion/PWFusion_AS3935_I2C

Manual link
https://tinyurl.com/y5vnlwjd

Video link
https://youtu.be/uQwvpUYsRok

Website Link
http://www.diymalls.com/GY-AS3935-Lightning-Detector-Digital-Sensor
Alibaba Link                        http://aliurl.cn/axyizl
Aliexpress link    http://aliurl.cn/as06xt
Amazon link                          www.amazon.com/dp/B087358RNT

Any question please email sales@diymalls.com

 

Optical Fingerprint Reader Sensor with Arduino

DIYmall Optical Fingerprint Reader Sensor with Arduino

What you need:
1PCS Arduino UNO R3
1PCS USB Cable
1PCS Fingerprint Sensor
1Set Dupont Cable

Connection:

 

Code link:
https://github.com/adafruit/Adafruit-Fingerprint-Sensor-Library

Video link
https://www.youtube.com/watch?v=QP9Q075vuJ0&t=200s

Website link
http://www.diymalls.com/Optical-Fingerprint-Reader-Sensor?search=fingerprint

amazon link 
https://www.amazon.com/dp/B07BQ9VNWR

https://www.amazon.com/dp/B07551XV2T
https://www.amazon.com/dp/B077GKPWMN

Any question please email sales@diymalls.com

U-blox 7 vk-172 gps module can not get correct readings

Recently, one customer complained:

I bought a U-blox 7 from you and I’m giving it some tests right now and I’m not getting correct readings from it. I’m an application developer and I had to add a compensation element to both latitude and longitude in order to get “correct” readings from it.

GPS data to google data need conversion

Here is the link about how to do it https://drive.google.com/open?id=1MwNTrqJtst3Dpl9qH8Mt3UJhs87ODdf9

SIM7100A 4G Development Board for Arduino Raspberry Pi DIYmall

1 .  Connect the board like this, one micro usb cable to computer, power the SIM7100A board ( pins is supply and GND, you can use DC Power supply to power the board . Power supply voltage:5V-18V, current  about 1.0A, you can adjust the current until the PWR LED turn on

2 . Download document link
http://www.diymalls.com/files/FZ2846-US-sim7100A-board-4G.zip
User name and password is diymall

3 . Press the switch   until the 2 LEDs turn on (PWR and STA)

4 . Open device manager, then you will see

5 . Right click to install the driver, you need install the driver manually, find the driver file and install it for about 5 times ( you need choose the right system file)

6 . Then the computer will inform you to install the driver, just click and install the driver . After installing, please find the COM port in the device manager

7 . Open SIMCom Wireless Kit software, choose the Simtech Hs-USB AT Port 9001 (here is COM23), click open port, you can input AT commands in the e.g blank place, like AT, ATI

Amazon link      https://www.amazon.com/dp/B078BNWB9X

DIYmall 9G Servo with Arduino UNO R3 Tutorial

Servo control generally requires a base pulse about 20MS,if the degree is not 180 degree, you need adjust the base pulse in the Arduino code

0.5ms—0 degree
1.0ms—45 degree
1.5ms-—90 degree
2.0ms — 135 degree
2.5ms— 180 degree

Below is Arduino code:

 

#include <Servo.h>

Servo servo1;

 

void setup()

{

servo1.attach(3);

 

servo1.writeMicroseconds(2500); // = -90°

delay(500);

servo1.writeMicroseconds(500); // = 0°

delay(500);

servo1.writeMicroseconds(1500); // = 90°

delay(500);

servo1.writeMicroseconds(2500); // = -90°

delay(500);

servo1.writeMicroseconds(500); // = 0°

delay(500);

servo1.writeMicroseconds(1500); // = 90°

delay(500);

}

void loop() {}

 

 

Test result video links:

sweep from left to right:  https://youtu.be/arjDG0e88Bs

From left to middle then to right:  https://youtu.be/LZMyuq_Ohn0

amazon US https://www.amazon.com/dp/B074SH8XRK

email  sales@diymalls.com

 

 

DIYmall 9G Servo and Servo Tester

Today, we will learn how to test 9G servo
You need prepare:
9G servo
Servo Tester
USB to TTL serial cable

The connection as below:
9G Servo      Servo Tester  out              Servo Tester in         Serial Cable
Yellow              S                                                  S                                   White
Red                  +                                                   +                                    Red
Brown              –                                                    –                                   Black

Video link  https://youtu.be/1ECQAyoVbqU

Servo link https://www.amazon.com/dp/B012LZKTDO

9g servo link https://www.amazon.com/dp/B074SG74KV