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If you're a person like me that gets exhausted turning knobs all day, the DS3502 is just the ticket to calm all your knob-turning related troubles. Instead of having to turn knobs with your HANDS like an ANIMAL the DS3502 I2C Digital Potentiometer allows you to let your microcontroller adjust the resistance for you! Now you can free your hands to spin your fidget spinner or or eat a slice of pizza while you're on the phone. Talking over an I2C bus, your Arduino, CircuitPython board, or Python powered computer can talk to the DS3502 and tell it to vary its resistance at your beck and call.
Working with the DS3502 is easy as an I2C controllable pie. Adafruit have put it on a breakout PCB with the required support circuitry and SparkFun qwiic compatible STEMMA QT connectors to allow you to use it with other similarly equipped boards without needing to solder. This handy little helper can work with 3.3V or 5V micros, so it's ready to get to work with a range of development boards. The DS3502 is a simple chip that does one thing well and so it's very easy to work with. Wire it up and set the value for the wiper, thats it. To make things even easier Adafruit have gone and written Arduino and CircuitPython/Python 3 drivers to simplify interfacing with your new knob-replacing friend.
"OK, this thing sounds great. Give me some details" you say. OK then, here you go: The wiper value is a 7-bit number meaning there are 128 possible levels of resistance to choose, from 0-10K ohms. You can even set a default value that will be set on power up. The analog voltage controlled can be from 4.5-15.5V. Additionally you can use the address jumpers or pins to set the I2C address to one of four values, allowing you to have four DS3502s on the same I2C bus.
Diagrams, libraries, code examples, datasheets, and more are all in the learning tutorial
Product Dimensions: 25.4mm x 17.7mm x 4.6mm / 1.0" x 0.7" x 0.2"
Product Weight: 1.6g / 0.1oz
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia
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