Reference Design for Segment LCD Control Using GPIO Pins to Increase System Flexibility
Description
The TIDA-00848 reference design provides an innovative solution for adding LCD functionality to any Smart Grid or IoT application: where seven-segment LCD operation is required but the LCD dsiplay does not have to be always on. Using a few resistors and optimized GPIO control software on a CC1310 SimpleLinkTM Wireless MCU: a seven-segment LCD support is implemented. This design approach can be used with any TI microcontrollers without an on-chip LCD controller module.
Features
- Innovative solution for driving Seven-segment LCD thru GPIOs by CC1310 SimpleLink Wireless MCUOnly 26 I/Os needed for driving 80 seg-ments of a 4-MUX: 1/3-biased LCDSensor controller peripheral senses the capacitive touch PCB area and reads out the LMT70A sensors periodically2-layer PCB With HCA form factor using a 96-segment 4-MUX LCD and cap touch area for LCD ON/OFFAverage current: 835 nA @ 3.6 V (LCD OFF); 338 uA @ 3.6 V (80 LCD segments ON) under TI RTOS framework
Applications
- Electricity meter
- Water meter
- Gas meter
- Desktop POS
- Heat meter
- ATMs (Automated Teller Machines)
- Single board computer
- Rugged PC & laptop
- Telemetry & RTUs
- Key panel
- Solar charge controller
- Stand-alone remote IO
Product Categories
- Sub-1 GHz products
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| Download the bill of materials for TIDA-00848 | Download |
Test Data
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Download the test file for TIDA-00848| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00848 Gerber | 02 Jun 2016 | ZIP | 688 | |
| TIDA-00848 PCB 3D | 02 Jun 2016 | 939 | ||
| TIDA-00848 Altium | 02 Jun 2016 | ZIP | 904 | |
| TIDA-00848 PCB Layer Plots | 02 Jun 2016 | 1341 | ||
| TIDA-00848 Assembly Drawing | 02 Jun 2016 | 212 | ||
| TIDA-00848 BOM | 02 Jun 2016 | 161 | ||
| TIDA-00848 Schematic and Block Diagram | 02 Jun 2016 | 487 |