Reference Design for Segment LCD Control Using GPIO Pins to Increase System Flexibility
TIDA-00848
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Key Document

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 MCU
  • Only 26 I/Os needed for driving 80 seg-ments of a 4-MUX, 1/3-biased LCD
  • Sensor controller peripheral senses the capacitive touch PCB area and reads out the LMT70A sensors periodically
  • 2-layer PCB With HCA form factor using a 96-segment 4-MUX LCD and cap touch area for LCD ON/OFF
  • Average current: 835 nA @ 3.6 V (LCD OFF); 338 uA @ 3.6 V (80 LCD segments ON) under TI RTOS framework

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TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC1310  SimpleLink Sub-1 GHz Ultra-Low Power Wireless Microcontroller  SimpleLink Solutions  Sample & Buy View Design Kits & Evaluation Modules
LMT70A  ±0.1°C Matching Accuracy Precision Analog Temperature Sensor  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC1310 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 2436 16 Jun 2016
Design files (7)
Title Type Size (KB) Date
ZIP 688 02 Jun 2016
PDF 939 02 Jun 2016
ZIP 904 02 Jun 2016
PDF 1341 02 Jun 2016
PDF 212 02 Jun 2016
PDF 161 02 Jun 2016
PDF 487 02 Jun 2016
Related Tools & Software

Reference Designs  ( 2 )

Software (1)



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