Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
Parallax P2 Eval LED Matrix Add-On Board
Equipped with 56 Charlieplexed green LEDs
Requires only 8 I/O pins for full LED control
Features a pass-through socket for easy stacking
Assembled and tested in Rocklin, California
The Parallax P2 Eval LED Matrix Add-On Board is equipped with an 8 x 7 grid of Charlieplexed green LEDs. This board is designed to be used with Propeller 2 multicore microcontroller projects, enabling the display of text or graphics across 56 LEDs using a mere 8 I/O pins. The board utilizes Charlieplexing, a technique that controls a larger number of LEDs with fewer I/O pins. This is achieved by leveraging the one-way current flow properties of diodes, including Light Emitting Diodes, in conjunction with the tri-state properties of the Propeller 2 I/O pins.
The board does not light multiple LEDs simultaneously but rather switches them on and off rapidly enough to create the illusion of simultaneous illumination to the human eye. This is achieved when the Propeller 2 code switches each LED on and off at least 50 times per second (50 Hz), resulting in a flicker-free appearance and the illusion of the LEDs being permanently on. The Propeller 2 is capable of switching at speeds faster than 180 MHz, providing ample time to activate every LED if necessary.
The Parallax P2 Eval LED Matrix Add-On Board also includes a pass-through socket that stacks on top of a 2x6 accessory header on the Propeller 2 Evaluation Board. Additionally, it is compatible with a P2 Edge Module Breadboard or a P2 Edge Mini Breakout Board with a P2 Edge Module installed.
If you are not satisfied for whatever reason with a Product you bought on the Site, it is possible to return it for refund within 30 days from the date you received it unless otherwise indicated in the Product listing. You must first advise the Vendor associated with your order in your account to obtain a return authorization (‘’RA’’) number before returning a Product. (‘’RA’’) numbers are valid for 30 days, within which time the returned Products should be received by the Vendor. No returns will be accepted without having previously obtained an (‘’RA’’) number. The Product must then be returned in its original packaging (in perfect condition for resale) with its receipt and your (‘’RA’’) number. Reimbursement will be denied for any Products which do not conform to the above mentioned conditions.
Build-it-yourself Robot Parts are not refundable once assembled. Robots & Kits requiring assembly or soldering are also not refundable once assembled, soldered or modified in any way. All sales of robotic software and apps are final and cannot be refunded or exchanged. Returns are not accepted on special orders and clearance items except when they are found defective, in which case the Product may be repaired or replaced at the Vendor’s discretion. 20% Restocking fees may apply if you are returning a large quantity of the same Product that was ordered specifically for you from the manufacturer.
Please note that all items will be reimbursed within 7 to 14 days of receiving the Product (shipping fees excluded). You must also cover the cost of returning the Product. Shipping fees will only be refunded if the return is a result of a shipping error on our part. Cleaning fees of USD 100 may also be charged if a domestic robot is returned and has not been properly cleaned.
