The PIC-IoT WA (Part Number: EV54Y39A) is an AWS pre-configured rapid prototyping IoT development board launched by Microchip. It integrates an on-board debugger. Once connected to a PC via Micro-USB, the board mounts itself as a CURIOSITY removable drive, supporting drag-and-drop firmware flashing, web-based network configuration, and cloud data upload. Paired with the dedicated IDE, users can implement code development and on-chip debugging without an external programmer or serial module throughout the workflow.
1. Preparations
Hardware
PIC-IoT WA development board, data-capable Micro-USB cable (charge-only cables cannot be detected by the device).
Network
Only 2.4 GHz Wi-Fi is supported; a mobile hotspot is recommended to streamline network configuration.
Software (Required for Secondary Development)
MPLAB X IDE v5.30 or newer, XC16 Compiler v1.50 or newer.
2. Full Step-by-Step Getting Started Guide
Step 1: Hardware Connection & Device Detection
Connect the development board to a Windows/Mac/Linux PC using the USB cable. The system will automatically recognize a virtual removable drive named CURIOSITY. Proceed to the next step once the device is enumerated normally.
(Images sourced from Microchip)
Step 2: Firmware Upgrade (Mandatory for First Use)
Download the latest firmware from the official link:
https://github.com/microchip-pic-avr-solutions/pic-iot-aws-sensor-node/releases/latest
Grab the PIC-IoT-WA-x.y.z.hex file and drag it directly onto the CURIOSITY drive.
The on-board LED will blink, indicating automatic firmware flashing and board reboot.
Step 3: Wi-Fi Configuration & AWS Cloud Onboarding
Open the CURIOSITY drive and double-click CLICK-ME.HTM; an AWS configuration page will launch automatically in your web browser.
(Images sourced from Microchip)
Enter your 2.4 GHz Wi-Fi SSID and password, then click Download Configuration to generate the local WIFI.CFG file (the configuration file is generated locally only and will not be uploaded to any server).
(Images sourced from Microchip)
Drag the generated WIFI.CFG file to the CURIOSITY drive. The board LED will flash again, and automatic Wi-Fi connection will complete.
(Images sourced from Microchip)
Step 4: View Cloud Data
Upon successful network connection, readings from the on-board temperature and ambient light sensors will be automatically uploaded to Microchip’s AWS evaluation sandbox, where real-time data can be viewed directly on the web page. For commercial deployment, migrate the resources to your private AWS account.
Related Documents
Related Products
- PIC-IoT WA Development Board ( EV54Y39A)
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