SparkFun will be closed for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).
Description: Got too much data for 10 measly segments? This kit contains a PCB and all the parts needed to build a 30-LED bargraph that can be driven by an Arduino or other microcontroller.
This kit uses our 74HC595 shift registers and 10-Segment bargraph modules to create the display. We supply one green, one yellow, and one red module for ‘safe / caution / DANGER!’ displays. The display is easily driven by a microcontroller using an SSI interface, and you have individual control over every LED.
Note: This kit comes unassembled and requires basic soldering skills. The included resistors may vary in color depending on our supplier.
Dimensions: 3" x 2"
Based on 2 ratings:
The board arrived pretty quick. Assembly is very simple. I used the picture to orient the parts, and guess what - the way the LED block is shown in the picture with YS facing the IC’s is incorrect. I learnt it the hard way and had to desolder the 3 LED blocks and remount them. Desoldering showed me that the quality of the PCB is pretty good. However if I were to do it again, I would assembly only one 74HC595 and one LED block. Then check it at that point. If all worked well, i would assemble the rest. The purpose of me getting the board was use 4 DIO ports on a Keithley 2400 power supply to control 128 relays. I used DIO#1 for CLR, DIO#2 for CLK, DIO#3 for LATCH and DIO#4 for SIN. This board gives me a visual if I will be setting the relays correctly. Now that the HW is all good, I can focus on the SW development & extend the concept to 128 individual controls.
This kit arrived in a timely manner, no delay, like that. Actually read the installation document before its arrival, and it’s a well written and well illustrated paper, I really learn a lot from it. If you follow the procedures, as I did, and don’t skip any step, you’ll be rewarded with first-time power-up success. It works for me 100% Overall, this kit is well built and the PCB is supra. Oh, I had a great time putting it together. You got one happy camper here.