Overview
This document focusses on the requirements and design/functional specifications for the Universal Pet Microchip Reader of Peeva LLC.
Motivation
1. Develop a universal pet microchip scanner with wireless connectivity: This scanner will have a sleek design and can read a multitude of microchips with the feature of wirelessly transmitting the scanned microchips to retrieve the relevant info automatically into the system (PC/Bluetooth).
2. Seamless integration into the back-end of Peeva: The microchips that would be read from this reader would be directly transferred to the Peeva Application.
Requirements
- The following are the requirements of the product:
- Ability to read AVID, Trovan, Destron, ISO and a variety of other microchips
- Wireless connectivity (Bluetooth or Wifi).
- Battery Backup with charge functionality.
- Sleek design with notifications for various events such as scanning microchip, battery status etc.
Design
The design of the proposed microchip reader is as follows:
1. Case Design and Notification LEDs
A round microchip reader with the following features:
- Notification LEDs
- Ergonomic Handle
- A hole for charging port and transparent diffused plastic with labels for LED
- lights
A sample visual as per the above requirements are as follows:
The placement of the components in the above design is given below:
The notification LEDs function as follows:
- The Power LED shines green when completely charged and amber when low in charge.
It lights up only in the following events and is not ON when idle:
- When a microchip is scanned
- When it has finished charging and can be unplugged from the charger
- When it runs low on charge
- The Connectivity LED shines white if the reader is connected to the Database , only when the microchip is being scanned, it’s OFF when the reader is in an idle state.
- The Scan LED blinks blue while scanning and shines Blue constantly after scanning till timeout period.
2. Functional Requirements of the PCB
The circuit in this module has the following requirements:
- Ability to read the following microchips [1]
- LiPo Battery charger circuit capable of regulating charging and usage at the same time with a micro-USB charging port
- A single switch to start scan.
- Wireless connectivity using either of the two technologies:
- Wi-Fi (ESP-8266 [2] )
This technology has the following advantages:
- Longer range
- Directly connects to the cloud/local server and synchronizes with the database
- Easier to integrate and configure over the network.
- Bluetooth
This technology has the following advantages:
- Shorter range
- Can pair with only devices in the vicinity
- Data is transferred through the intermediate device it’s connected with.
- Ensure that all of the circuitry are isolated from the field of the coil.
- The PCB should also contain a few pins near the front portion of the handle to interface Serial connections in case we add any other sensor (Eg: Fingerprint Sensor) in the future.
- The circuit needs to have just one button to initiate scan and after a timeout it can power down the device.
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