Introduction

BeagleBadge brings a new vision to wearable computing with e-ink display by combining built-in sensing with broad expansion flexibility. Built around the low-power Texas Instruments AM62L32 SoC and a 4.2 inch ePaper display. BeagleBadge pairs Wi-Fi 6, Bluetooth Low Energy 5.4, and LoRaWAN wireless connectivity. It has on-board 4-way joystick, tactile buttons, an RGB LED, and dual 7-segment displays for a complete human-machine interface out of the box. An onboard ambient light sensor, an IMU for precise position & orientation feedback, and temperature & humidity monitoring let you design intuitive, context-aware interactions. Beyond its core features, two QWIIC connectors along with Grove and mikroBUS headers unlock thousands of additional sensors, actuators, pulse oximeters, UV spectroscopy, fingerprint readers, GPS, haptics, and audio applications. That modularity makes BeagleBadge a versatile innovation platform that enables rapid prototyping, research, and real-world solutions in health, environment, and human-machine interfaces, while remaining practical, scalable, and accessible to all.

BeagleBadge Features and Specifications

This section provides an overview of the key features and specifications of the BeagleBadge board, highlighting its built-in sensors and expansion capabilities. The table below summarizes the main features and their descriptions, showcasing the versatility and potential applications of the BeagleBadge platform.

Table 31 BeagleBadge Features and Specifications

Category	Item	Specification
Processor and memory	SoC	Texas Instruments AM62L32, low-power SoC with display for IoT, HMI and general-purpose applications
	CPU	Dual-core Arm® Cortex®-A53 processor @ 1.25GHz
	RAM	256MB LPDDR4 (2Gb, 128M x 16bit) 1600MHz 3200Mbps
	Flash/non-volatile	256Mb OSPI flash
		32Kb EEPROM
Networking	Wi-Fi & Bluetooth	802.11ax Wi-Fi 6 (2.4GHz) and Bluetooth Low Energy (BLE) 5.4
		via BeagleBoard.org BeagleMod BM3301-1216 (TI CC3301), IPEX Gen 4 (MHF4) connector
	LoRaWAN	Wio SX1262 module (u.FL connector)
Built-in sensors	Sensors	1x IMU sensor
		1x Ambient light sensor
		1x Temperature & humidity sensor (not populated)
User interface	Input	1x Reset button
		1x 4-way joystick button with press
		2x Tactile buttons (Back and Select)
	Output	1x Passive buzzer
		1x RGB status LED
		2x 7-segment LED displays
Battery interface	Battery	Battery management with fuel gauge monitoring
		1x BAT connector for BL-5C
Expansion/connectors	Display	Support 4.2 inch ePaper via 24-pin FPC connector
		MIPI DSI connector for LCD displays
	Power & debug	USB Type-C for power input and debug
	Ecosystem	1x mikroBUS connector
		2x QWIIC connector
		1x Grove connector
	Host & storage	1x USB 2.0 Type-A host
		1x Micro-SD socket
Software	Base ports	Linux and Zephyr base ports with mainline roadmap
	Libraries	LVGL and MicroPython libraries for interactive ePaper display
	Examples	App store for programming examples
	Messaging	Meshtastic and ActivityPub integration for seamless off-grid messaging

Board Component Locations

The figures below locate each key component on the front and back of the board, with a table naming what each one does.

Todo

Replace both photographs with v1.0 board images. The current ones predate the Power button (S2 on schematic sheet 20). Label the Power button and the two GPIO expansion headers in the new annotations.

Front components location

Fig. 309 BeagleBadge board front components location

Feature	Description
4.2” ePaper	400 x 300 black-and-white ePaper screen, the primary display
LUX sensor	Ambient light phototransistor
RGB LED	User controllable RGB LED for visual feedback
7-segment LEDs	2-digit numerical display
4-way joystick	Joystick user input button with centre press
User buttons	Back and Select tactile buttons
GPIO headers	1.8V GPIO and ADC expansion header along the top edge
SOICbite	Debug header, accessed with a standard SOIC test clip
Lanyard slot	Standard-size lanyard slot

Back components location

Fig. 310 BeagleBadge board back components location

Feature	Description
AM62L	Texas Instruments AM62L32 SoC, dual Arm Cortex-A53 at 1.25GHz
256MB RAM	LPDDR4 at 1600MHz, a 2Gb (128M x 16) device
Optional eMMC	eMMC footprint, not populated on v1.0. See eMMC footprint
BM3301-1216	BeagleMod module providing Wi-Fi 6 and BLE 5.4
Wio-SX1262	LoRaWAN module
2-port USB 2.0 hub	Texas Instruments TUSB4020BI
microSD	microSD card socket for storage
USB-C	Power and connectivity, also carries the serial debug console
USB-A	USB 2.0 Type-A host port for peripherals
mikroBUS	mikroBUS expansion socket for MikroElektronika Click boards
QWIIC	Two I2C expansion connectors, marked 1 and 2
Grove	Grove expansion connector
MIPI DSI	FPC connector for an LCD display
4.2” ePaper FPC	24-pin FPC connector for the ePaper display cable
BL5C	Battery connector for a BL-5C cell
RESET	Reset button
Buzzer	Passive buzzer for audible feedback