Wiring a New Digit
Wiring the Driver
Initially I have to wire up my TLC59213IN to the 16 segment LED bank. In order to do a proof of concept I'm going to wire up a single digit.
| Line | Display Pin | Display Segment | MAX Segment | MAX Signal | Max Pin |
|---|---|---|---|---|---|
| 1 | 11 | Common Cathode | CC | O1 … |
Rearchitecting the output display, again.
The Problem
I want to create some simple circuit diagrams that look nice and can also be used to create a circuit board. Most layout programs either cost big bucks or run on the PC only (and still cost big bucks). I found a tool aimed primarily at Arduino called …
Multiple Digit Display Bank
Wiring Up Digit 1
| Line | Display Pin | Display Segment | MAX Segment | MAX Signal | Max Pin |
|---|---|---|---|---|---|
| 1 | 11 | Common Cathode | CC | O1 | 8 |
| 2 | 1 | a | a1 | O2 | 9 |
| 3 | 18 | b | a2 | O3 | 10 |
| 4 | 16 | c | b | O4 | 11 |
| 5 | 13 | d | c | O5 | 12 |
I got one digit …
One Display Bank
Wiring up a full Bank
I got one digit to work but I need to prototype the full 8 digits before adding an intelligent front end (that's later). I place all of my digits on the breadboard and move the MAX6954 to the top so that I can drive it …
Single Multisegment Display
Wiring up the MAX6954
I discovered the MAX6954 4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan which I'll call the MAX6954 from now on. This chip allows me to drive up to 8 16-segment LEDs using one chip and a minimum …