Back in stock in September 2023

What is it?

Tracer is a versatile, open-source wearable designed on the ESP-32 platform. Tailored for enthusiasts, it harnesses the power of the ESP-32's extensive software libraries, providing a deep dive into the mechanics and algorithms of a custom fitness tracker. With its integrated IMU and Time-of-Flight (ToF) sensor, Tracer offers a comprehensive view of your environment, further enhanced by WiFi and BLE connectivity.

Key Features;

• Real-time Object Tracking: Utilizes the LSM6DSL for precise motion capture.
• Adaptable Mounting: Features high-quality velcro straps, making it suitable for diverse applications - from analyzing bicycle lean angles to tennis racquet poses.
• Efficient Battery Management: On-board Li-ion battery charging via the TP4065 ensures longevity.
• Extended Battery Life: Offers up to 2.5 hours of continuous BLE streaming at 10Hz.
• Proven Connectivity: Boasts a 15m BLE range, as validated on a tennis court.

Featured on; Hackster Hackaday

Why did you make it?

Tracer is not just a wearable; it's a window into the world of motion analysis. Whether you're a sports enthusiast wanting to analyze your tennis serve or a cyclist keen on understanding lean angles, Tracer provides invaluable insights. Its ability to stream real-time data, combined with its integration with platforms like Phyphox and Edge Impulse, makes it a must-have for those seeking a deeper understanding of motion and performance.

Specification

• Microcontroller | ESP32-PICO-D4
  • WiFi | 802.11b/g/n
  • Bluetooth | BLE 4.2
  • FLASH | 4MB
  • Programming | USB over UART (CP2104)
• Inertial Measurement Unit (IMU) | LSM6DSLTR
  • Accelerometer | ±2/±4/±8/±16 g at 1.6 Hz to 6.7KHz
  • Gyroscope | ±125/±250/±500/±1000/±2000 DPS at 12.5 Hz to 6.7 kHz
• Time-of-Flight (TOF) | VL53L0X
  • Range | Up to 2m
  • 1D Gesture Recognition
• Li-ion Battery Management | TP4065
• Power | 700mA 3.3V LDO
• Weight | 13g on its own, 20g including velcro strap
• Mounting Options | Velcro Strap or 3x M.2.Screws

What makes it unique?

For more technical detail, check out the Github repo or the Hackaday project page.

What does it ship with?

• 1x Tracer unit
• Battery is not included because it is Lithium-Ion. It can use LIR2450, which are available on Amazon or RS or a 772435 power pack (https://www.amazon.co.uk/gp/product/B095VVDJDL/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&th=1)
• Examples and drivers are available in the git repo, here.
• Optional 1x Velcro Strap