วันพฤหัสบดีที่ 6 เมษายน พ.ศ. 2560

How to Build 8 Channel Transmitter nrf24l01 Arduino



 

       The instruction "How to build 8 Channel Transmitter nrf24l01 Arduino" introduce how to make 8 channel transmitter from 4 channel RC plane.All existing electronic boards had been taken off ,remaining 4 potentiometers of each control channels would be used after and adding new 4 potentiometers for more 4 control channels.
         The rebuilt transmitter would be operated by Arduino controller.The new design program should be applied to remote control various devices via nrf24l01 radio module such as robotic arm,multi servoes,rc planes,rc tanks,rc cars,rc boats ,etc.

Materials & Tools
1. 1 - Arduino controller - Nano








2. 1 - NRF24L01+PA module with SMA anttenna


3. 1 - Socket adapter for NRF24L01(For protect & stabilize NRF24L01 module)









4. 2 - LED 4 mm.(green and red)










5. 2 - Resistor 1 kOhm. 1/4 watt.(Option)


6. 1 - Capacitor 0.1 microF /50V.


7. 1 - Capacitor 1 microF /50V.
8. 1 - Capacitor 100 microF /50V.
9. 1 - Diode 1N4001
10. 1 - 7805 IC Regulator 5V.
11. Dupont wires












12. Female pin header












13. Dupont Jumper Cable Housing Male Pin Connector


14. Dupont Jumper Cable Housing Female Pin Connector











15. Male JST Battery Pigtail












16. Heat shrink tube 1.5 - 10 mm.







17. Velcro tape










18. 1 - PCB.DIY. circuit board












19. Battery Lipo 7.4 V. 1000 mAh (2 cells)








20. 4-Channel RC Transmitter









21. 4 - B10K potentiometers












22. Electrical 26 AWG wires
 

Tools
1. Soldering gun.
2. Soldering wire.
3. Soldering paste.
4. Screw driver.
5. Plier.
6. Hot glue gun.
7. Epoxy glue.
8. Two sides glue tape.
9. Plastic cutter.

Body Modification , Electronic Parts Installation & DIY PCB
Body modification & DIY PCB
1. Open transmitter body up,remove old existing PCB ,leave 4 potentiometers Aileron,Elevator,Throttle,Rudder.
  

2. Make DIY PCB according to circuit diagram.(See pin connection below)
*Soldering all devices carefully ,use enough large wire.Making good ground.
3. Drill transmitter body for installing 4 more potentiometers.
4. Cut off plastic body to open a hole for Nano USB.
5. Paste Velcro tape at the transmitter back for battery attachment.
6. Install DIY PCB and NRF24L01 module on transmitter body by hot glue.
7. Connection wiring between DIY PCB , Potentiometers , main switch and battery terminal.

8. Assemble transmitter body back.
*Before connecting battery,check out to find short circuit points on DIY PCB.Otherwise it can smoke and burn everything. (Be careful of Lipo battery , it's high current supply , short contact will spark fire)
Arduino Nano Connection pin No :
A0 - Auxillary4 potentiometer
A1 - Aileron potentiometer
A2 - Elevator potentiometer
A3 - Throttle potentiometer
A4 - Rudder potentiometer
A5 - Auxillary1 potentiometer
A6 - Auxillary2 potentiometer
A7 - Auxillary3 potentiometer
D3 - Throttle hold LED
D7 - Throttle hold switch
nRF24L01 module Socket adaptor to Arduino Nano pin No :
Vcc - 5 V. supply (Do not connect 5V. direct to nRF24L01 module,it's supplied only 3.3V.)
GND - GND
CE - 9
CSN - D10
SCK - D13
MO - D11
MI - D12
IRQ - D2
*If you have communication problem,you can change connection from pin 13,11,12 to pin SCK,MOSI,MISO of Nano programming pins.
*It's necessary to add 0.1 microF to nRF24L01 module pin Vcc/GND because the module needs stable current and voltage. Also solder a small wire at the antenna to increase control range.
Software Installation
1.Down load nRF24L01 module library zip file from https://github.com/maniacbug/RF24/downloads.
2.Add library zip file to Arduino IDE.(After finish addition, you will see new library RF24-master in Examples menu.)
3.Before using new nRF24L01 modules,we shall burn the modules by uploading default sketch pingpair and GettingStarted for tuning up frequency otherwise it will has uncommunication problem. (Use another Arduino Nano/UNO and nRF24L01 modules for pairing)

4.After matching the frequency ,we can upload Tx code sketch from GitHub to rebuilt transmitter.














วันอาทิตย์ที่ 2 เมษายน พ.ศ. 2560

How to Control Tracked Robot Via 3-Channel RC Transmitter Arduino

       

    Instruction introduces how to control Tracked robot via 3-Channel 2.4G Transmitter-Flysky's protocol by using arduino controller to read receiving code to transform command to control L298N dual motors driver module.

Materials
1. 1 - Arduino controller - Nano
 




4. 1 - L298N dual motor drive module


5. 1 - Tamiya track and wheel set










6. 1 - Tamiya dual geared box


7. 1 - Tamiya plastic perforated plate



8. Dupont wires


9.Female pin header


10. Dupont Jumper Cable Housing Male Pin Connector
11. Dupont Jumper Cable Housing Female Pin Connector
12. Male JST Battery Pigtail














13. Heat shrink tube 1.5 - 10 mm.







14. PCB - DIY circuit board



15. Velcro tape




16.Wires


Parts & DIY PCB Installation
Connecting and soldering electronic parts on DIY. PCB according to circuit diagram.



Arduino Nano pin to L298N Pin No :
D3 - ENA
D4 - IN1
D5 - IN2
D6 - IN3
D7 - IN4
D8 - ENB
Arduino Nano pin to Flysky receiver Pin No :
A0 - CH1
A1 - CH2
A2 - CH3

Software Installation
Arduino sketch and Library :
1.Down load sketch from GitHub.
2.Upload sketch to Ardunio Nano.
3.Test the Tracked robot.If the wiring connection was well done.It should work fine.














วันจันทร์ที่ 20 กุมภาพันธ์ พ.ศ. 2560

How to Control Tracked Robot Via Joystick NRF24L01 Module Arduino Part2 Rx

 
 

      The instruction will describe the method how to build Receiver(Rx) on Tracked Robot for Transmitter(Tx) in the instruction "How to control Tracked Robot via  Joystick NRF24L01 Module Arduino Part1 Tx".
      More information : www.instructables.com 
Materials & Tools
Materials
1. 1 - Arduino controller - Nano










2. 1 - NRF24L01 module











3. 1 - Socket adapter for NRF24L01(For protect & stabilize NRF24L01 module)









4. 1 - LED 5 mm.


5. 1 - Resistor 1 kOhm. 1/4 watt.













6. 1 - Capacitor 0.1 microF /50V.













7. 1 - Capacitor 1 microF /50V.
8. 1 - Capacitor 100 microF /50V.
9. 1 - Diode 1N4001
10. 1 - 7805 IC Regulator 5V.
11. Dupont cable














12. Female pin header












13. 1 - L298N Arduino module











14. Electrical wires










15.Heat shrink tube 1.5 - 10 mm.








16. PCB - DIY circuit board



17. Battery Lipo 7.4 V. 500-1000 mAh








18. Velcro tape










19. Tamiya track and wheel set


20. Tamiya dual geared box


21. Tamiya plastic perforated plate


22. 2 - pairs of JST plug













Tools
1. Soldering gun.
2. Soldering wire.
3. Soldering paste.
4. Screw driver.
5. Plier.
6. Hot glue gun.
7. Miscellaneous screws ,bolts and nuts.
Electronic parts Installation
 

DIY PCB Building
Connecting electronic parts on PCB according to circuit diagram and solder them.


Arduino Nano pin to L298N
Pin No :
3 - ENA
4 - IN1
5 - IN2
6 - ENB
7 - IN3
8 - IN4
GND - GND of L298N
L298N module
Vcc - Battery positive pole
GND - Battery negative pole - GND of NANO
MotorA - Left motor
MotorB - Right motor
nRF24L01 module Socket Adaptor to Arduino Nano
Pin No :
Vcc - 5 V. supply (Do not connect 5V. directly to nRF24L01 module,it's supplied only 3.3V.)
GND - GND
CE - 9
CSN - 10
SCK - 13
MO - 11
MI - 12
IRQ - 2
*If you have communication problem,you can change connection from pin 13,11,12 to pin SCK,MOSI,MISO of Nano programming pins.
*It's necessary to add 0.1 microF to nRF24L01 module pin Vcc/GND because the module needs stable current and voltage.

Software Installation
Arduino sketch and Library :


1.Down load file .ino and library zip file GitHub.
2.Add library zip file to Arduino IDE.You will see new library RF24-master in Examples menu.
3.Before using new nRF24L01 modules,we shall burn the modules by uploading default sketch pingpair and GettingStarted for tuning up frequency otherwise it will has uncommunication problem.(Use another Arduino Nano and nRF24L01 modules for pairing)
4.After succeed matching the frequency ,we can upload Rx sketch  Rx_2CH_robot_V13_ NANO_for_remote_NANO_V2_public2 to Nano controller.
5.Test Receiver(Rx) with Transmitter(Tx).See serial monitor showing the print out data as attached video clip.