Arduino PWM LCD backlight control circuit
- or -
Post a project like this243
£6(approx. $8)
- Posted:
- Proposals: 2
- Remote
- #4037027
- Awarded
Description
Experience Level: Entry
We have an LCD that the backlight is controlled with a 5v voltage signal. The LCD controller has its own circuitry to provide 5v and about 140mA of current. We have found the pin where there was a diode before this voltage was outputted into the lcd backlight LEDs. We want to use this pin to control the backlight with an arduino pwn pin. Unfortunately the pwm on Arduinos only outputs about 40mA of current I believe. We need a simple component such as a transistor perhaps to enable us to do this by making use of the backlight circuitry on the lcd controller and the pwm pin on an Arduino.
Matin K.
100% (21)Projects Completed
22
Freelancers worked with
17
Projects awarded
48%
Last project
11 Dec 2023
United Kingdom
New Proposal
Login to your account and send a proposal now to get this project.
Log inClarification Board Ask a Question
-
There are no clarification messages.
We collect cookies to enable the proper functioning and security of our website, and to enhance your experience. By clicking on 'Accept All Cookies', you consent to the use of these cookies. You can change your 'Cookies Settings' at any time. For more information, please read ourCookie Policy
Cookie Settings
Accept All Cookies