With a 16-pin DIP package, L293D integrates a bipolar H-bridge circuit internally. The bipolar PWM method has many advantages: continuous current, four-quadrant operation of motors, smoothness during low speed, micro-vibration currents when the motor stops (which as dynamic lubricator can eliminate static friction during the motor forward-inverse rotation), etc.
L293D generates enable signals by an internal logic circuit. The input of the H-bridge circuit can be used to define the direction of the motor rotation when the enable signals, for PWM. Besides, it integrates two H-bridge circuits onto one chip, which means one chip can control two motors simultaneously.
Each motor needs three kinds of control signals: EN12, IN1, and IN2. Within, EN12 has enable signals, when IN1 and IN2, motor rotation direction ones. When IN1 and IN2 are 1 and 0 respectively, the motor rotates forward; or else, it rotates inversely. Connect the PWM pins with pin EN12 and then you can change the rotational speed of the motor by adjusting the duty cycle of PWM. Connect one of the I/O pins with pin IN1 and IN2 with the inverter 74HC14, so as to control the forward and reverse rotation of the motor.
The module can be used as the driver board for robots and smart cars. More details can be found in http://wiki.sunfounder.cc/index.php?title=Motor_Driver_Shield.
NOTE: The shield itself does not support any functions; it needs to be plugged onto an Uno board for normal use.
For the protection of the shield, PLEASE use an EXTERNAL power supply!
- A shield to drive DC motors, stepping motors, and servos; just plug it onto an Uno board (Arduino, SunFounder, or other compatibles) for use.
- Use L293D to drive motors: capable of driving two lines of DC motors at the same time; use ULN2003: capable of driving one line of stepping motors; use a 5V supply: capable of driving 4 lines of servos.
- Lead-out I/O ports from Uno for external circuit use.
- Working voltage: 6.5-12V DC; operating temperature: 0 ~ 70℃.
- With a power switch button; support multiple functions; convenient to use.
- Motor Driver Shield x 1
1. Order processing times
All orders are processed within 24 hours after they are placed. Usually, we are able to ship orders the next day. Weekend orders are shipped on the following Monday. You will receive a shipping confirmation email from our system when the shipping information has been uploaded.
2. Free Shipping on ALL orders
Generally, we will ship the orders with Free Shipping, without the minimum order amount requirement. You may check if the free shipping method is available to your country in the Delivery Area below.
If you don't find your country in the delivery area, please reach out to firstname.lastname@example.org, our sales staff will contact you ASAP.
For distributors, please contact us at email@example.com for more shipment details.
NOTE: All the orders will be shipped from our China warehouse.
3. Delivery Area
Hong Kong SAR, Japan, Macao SAR, Malaysia, Philippines, Russia, Singapore, South Korea, Thailand, Vietnam, etc.
Austria, Belgium, Czechia, Denmark, Finland, France, Germany, Greece, Hungary, Italy, Lithuania, Luxembourg, Monaco, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom, etc.
Australia, New Zealand
Canada, Mexico, United States
4. How do I track my order?
GOT A SUNFOUNDER ACCOUNT?
Easy Peasy! Log into your account through the online store, check out the fulfilment status against your recent order. If the order has been fulfilled, click onto the order information & you can find your tracking information here.
I DON'T HAVE AN ACCOUNT YET
As soon as your order is packed and shipped, you'll receive a shipping confirmation email. You will then be able to track your order through the tracking link on the email. If you haven't received an email yet, please reach out to us at firstname.lastname@example.org, our sales staff will contact you ASAP.
5. Shipping Method and Delivery Times
DHL(Orders Over $400)
UPS(Orders Over $400)
Delivery Time: 12-15 working days
You can track on https://www.17track.net/en
* Delivery Time - These are the delivery estimates provided by our shipping partners and apply from point of dispatch, not from point of sale. Once your parcel leaves our warehouse, we cannot control any delays after that point.
6. Customs & Import fees
Such as the products you buy on our site - can't simply be shipped freely from country to country. When goods are imported into a different country or customs territory, there is a charge called Customs Duty that must apply. This is charged by the local customs authority where the goods are being imported into.
If Customs Duty is payable to your territory, you'll be responsible for paying it to the authorities, so SunFounder isn't involved in this process. Whether Customs Duty is payable, and by how much, depends on a whole lot of different things. For example, many countries have a 'low value threshold' below which they do not charge any Customs Duty.
If you do have to pay Customs Duty though, the amount payable is usually calculated based on the value of the goods and the type of goods being imported.
AND IF I DON'T PAY THE CUSTOMS DUTY?
If, for whatever reason, you refuse the customs fee and the parcel is returned back to us. If you're still unsure on whether you'll be subject to customs fees, we recommend contacting your local customs office for more info before placing your order!
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.