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Motor Driver to read PWM
Using L293D or L298N would require an Arduino its self as an Bi-direction ESC substitute for surface vehicles which serves as an pwm converter from the synerduino shield
L293D is a quadruple motor driver that uses a half-H driver while L298N is a dual full-H driver, i.e, in L293D all four input-output lines are independent while in L298N, a half-H driver cannot be used independently, only a full H driver has to be used. in a typical PWM servo signal the 1000ms to 2000ms where the 1500ms is center or neutral position. Note that RC PWM inputs are on A0 & A1 pins on the Arduino
Ardublock For block code Programing , files in (.abp)
L298N Motor Driver
- OPERATING SUPPLY VOLTAGE UP TO 46 V.
- TOTAL DC CURRENT UP TO 4 A.
- LOW SATURATION VOLTAGE.
- OVERTEMPERATURE PROTECTION.
- LOGICAL ”0” INPUT VOLTAGE UP TO 1.5 V
![L298N Pin out](https://i0.wp.com/electronicshobbyists.com/wp-content/uploads/2017/08/word-image-13.png?w=750)
the L298N is typical 2 H-bridge set one for each motor with 4 inputs two of which is represent by two motors
![L298N Block Diagram Current Flow How It Works](https://howtomechatronics.com/wp-content/uploads/2017/08/L298N-Block-Diagram-Current-Flow-How-It-Works-1024x547.png)
- A0 1000ms-1400ms as Reverse (Motor Driver)A out 1 & 2 input 1 (low) Input2 (high) (Arduino Pins D2 & D3)
- A0 1500ms as Stop or Release (Motor Driver) A out 1 & 2 (low) Input2 (low) (Arduino Pins D2 & D3)
- A0 1600ms -2000ms as Forward (Motor Driver) A out 1 & 2 input 1 (high) Input2 (low) (Arduino Pins D2 & D3)
- A1 1000ms-1400ms as Reverse (Motor Driver) B out 3 & 4 input 3 (low) Input 4 (high) (Arduino Pins D4 & D5)
- A1 1500ms as Stop or Release (Motor Driver) B out 3 & 4 input 3 (low) Input4 (low) (Arduino Pins D4 & D5)
- A1 1600ms -2000ms as Forward (Motor Driver) B out 3 & 4 input 3 (high) Input 4 (low) (Arduino Pins D4 & D5)
L293D Motor Driver
![](http://synerflight.com/wp-content/uploads/2021/08/4DCmotorsL293motordrivershield_bb.jpg)
- 600mA OUTPUT CURRENT CAPABILITYPER CHANNEL
- 1.2A PEAK OUTPUT CURRENT (non repeti-tive) PER CHANNEL
- ENABLE FACILITY
- OVERTEMPERATURE PROTECTION
- LOGICAL ”0” INPUT VOLTAGE UP TO 1.5 V
- (HIGH NOISE IMMUNITY)INTERNAL CLAMP DIODES
which also introduce the Adafruit Motor driver Shield L293D which uses a decoder to process the signal . Before you can use the Motor shield, you must install the AF_Motor Arduino library – this will instruct the Arduino how to talk to the Adafruit Motor shield, and it isn’t optional!
![](http://synerflight.com/wp-content/uploads/2021/04/4DCmotorsL293motordrivershield_bb.jpg)
![adafruit_products_library_manager_menu.png](https://cdn-learn.adafruit.com/assets/assets/000/083/270/medium800/adafruit_products_library_manager_menu.png?1572399535)
![adafruit_products_af_motor.png](https://cdn-learn.adafruit.com/assets/assets/000/083/858/medium800/adafruit_products_af_motor.png?1573179471)
- A0 1000ms-1400ms as Reverse Motor 1
- A0 1500ms as Stop or Release Motor 1
- A0 1600ms -2000ms as Forward Motor 1
- A1 1000ms-1400ms as Reverse Motor 2
- A1 1500ms as Stop or Release Motor 2
- A1 1600ms -2000ms as Forward Motor 2
due to current limitation L293D of this Adafruit shield the maximum size motor would safely operate is below 600mA like the Type-130 , Type-140 , Type-260 at 3V-5V arduino sketch along with the ardublock file (download) has the Motor A (1) input A0 and Motor B (2) input A1 respectively . should be sufficient for differential drive surface vehicles . Further more test to be followed
HALL ESC for small Electric Vehicles
![](https://synerflight.com/wp-content/uploads/2024/06/viber_image_2024-05-30_13-25-44-084-1024x1024.jpg)
Documentation on Interface module using a 2nd Synerduino shield and UNO as the Mediator Bonus on Recommended servo Actuator for steering mechanisim
For HALL type ESC found in Electric bikes , Mobility scooters , and such small vehicles , this application is suitable for Larger Unmanned surface vehicles that uses Hall sensor (Feedback loop from Motor) Download contains Arduino sketch & Ardublock sketch