High Density Resistive Array Readout System for Wearable Electronics
This work presents a wearable sensing system for high-density resistive array readout. The system comprising readout electronics for a high-density resistive sensor array and a rechargeable battery, was realized in a wristband. The analyzed data with the proposed system can be visualized using a cus...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/5/1878 |
| _version_ | 1797473767881965568 |
|---|---|
| author | Shanthala Lakshminarayana Younghun Park Hyusim Park Sungyong Jung |
| author_facet | Shanthala Lakshminarayana Younghun Park Hyusim Park Sungyong Jung |
| author_sort | Shanthala Lakshminarayana |
| collection | DOAJ |
| description | This work presents a wearable sensing system for high-density resistive array readout. The system comprising readout electronics for a high-density resistive sensor array and a rechargeable battery, was realized in a wristband. The analyzed data with the proposed system can be visualized using a custom graphical user interface (GUI) developed in a personal computer (PC) through a universal serial bus (USB) and using an Android app in smartphones via Bluetooth Low Energy (BLE), respectively. The readout electronics were implemented on a printed circuit board (PCB) and had a compact dimension of 3 cm × 3 cm. It was designed to measure the resistive sensor with a dynamic range of 1 KΩ–1 MΩ and detect a 0.1% change of the base resistance. The system operated at a 5 V supply voltage, and the overall system power consumption was 95 mW. The readout circuit employed a resistance-to-voltage (R-V) conversion topology using a 16-bit analog-to-digital converter (ADC), integrated in the Cypress Programmable System-on-Chip (PSoC<sup>®</sup>) 5LP microcontroller. The device behaves as a universal-type sensing system that can be interfaced with a wide variety of resistive sensors, including chemiresistors, piezoresistors, and thermoelectric sensors, whose resistance variations fall in the target measurement range of 1 KΩ–1 MΩ. The system performance was tested with a 60-resistor array and showed a satisfactory accuracy, with a worst-case error rate up to 2.5%. The developed sensing system shows promising results for applications in the field of the Internet of things (IoT), point-of-care testing (PoCT), and low-cost wearable devices. |
| first_indexed | 2024-03-09T20:21:05Z |
| format | Article |
| id | doaj.art-2841f7eb69a74daebd842e5bab65ebbf |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T20:21:05Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2841f7eb69a74daebd842e5bab65ebbf2023-11-23T23:47:37ZengMDPI AGSensors1424-82202022-02-01225187810.3390/s22051878High Density Resistive Array Readout System for Wearable ElectronicsShanthala Lakshminarayana0Younghun Park1Hyusim Park2Sungyong Jung3Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX 76019, USADepartment of Electrical Engineering, University of Texas at Arlington, Arlington, TX 76019, USADepartment of Electrical Engineering, University of Texas at Arlington, Arlington, TX 76019, USADepartment of Electrical Engineering, University of Texas at Arlington, Arlington, TX 76019, USAThis work presents a wearable sensing system for high-density resistive array readout. The system comprising readout electronics for a high-density resistive sensor array and a rechargeable battery, was realized in a wristband. The analyzed data with the proposed system can be visualized using a custom graphical user interface (GUI) developed in a personal computer (PC) through a universal serial bus (USB) and using an Android app in smartphones via Bluetooth Low Energy (BLE), respectively. The readout electronics were implemented on a printed circuit board (PCB) and had a compact dimension of 3 cm × 3 cm. It was designed to measure the resistive sensor with a dynamic range of 1 KΩ–1 MΩ and detect a 0.1% change of the base resistance. The system operated at a 5 V supply voltage, and the overall system power consumption was 95 mW. The readout circuit employed a resistance-to-voltage (R-V) conversion topology using a 16-bit analog-to-digital converter (ADC), integrated in the Cypress Programmable System-on-Chip (PSoC<sup>®</sup>) 5LP microcontroller. The device behaves as a universal-type sensing system that can be interfaced with a wide variety of resistive sensors, including chemiresistors, piezoresistors, and thermoelectric sensors, whose resistance variations fall in the target measurement range of 1 KΩ–1 MΩ. The system performance was tested with a 60-resistor array and showed a satisfactory accuracy, with a worst-case error rate up to 2.5%. The developed sensing system shows promising results for applications in the field of the Internet of things (IoT), point-of-care testing (PoCT), and low-cost wearable devices.https://www.mdpi.com/1424-8220/22/5/1878wearableflexibleembedded systemhigh-density resistive arrayBluetooth Low Energypoint-of-care testing |
| spellingShingle | Shanthala Lakshminarayana Younghun Park Hyusim Park Sungyong Jung High Density Resistive Array Readout System for Wearable Electronics Sensors wearable flexible embedded system high-density resistive array Bluetooth Low Energy point-of-care testing |
| title | High Density Resistive Array Readout System for Wearable Electronics |
| title_full | High Density Resistive Array Readout System for Wearable Electronics |
| title_fullStr | High Density Resistive Array Readout System for Wearable Electronics |
| title_full_unstemmed | High Density Resistive Array Readout System for Wearable Electronics |
| title_short | High Density Resistive Array Readout System for Wearable Electronics |
| title_sort | high density resistive array readout system for wearable electronics |
| topic | wearable flexible embedded system high-density resistive array Bluetooth Low Energy point-of-care testing |
| url | https://www.mdpi.com/1424-8220/22/5/1878 |
| work_keys_str_mv | AT shanthalalakshminarayana highdensityresistivearrayreadoutsystemforwearableelectronics AT younghunpark highdensityresistivearrayreadoutsystemforwearableelectronics AT hyusimpark highdensityresistivearrayreadoutsystemforwearableelectronics AT sungyongjung highdensityresistivearrayreadoutsystemforwearableelectronics |