Bee Data Logger Getting Started with CircuitPython

Overview

This tutorial walks through every built-in feature of the Bee Data Logger using CircuitPython. The board ships with CircuitPython support and the official GitHub repo includes ready-to-use examples for each peripheral.

Getting Started

1. Download the CircuitPython firmware from the official board page
2. Flash the UF2 firmware via USB-C
3. The board appears as a USB drive -- copy code.py files to run them

Example Projects Included

RGB LED Control

• Rainbow: Cycles through colors using the onboard NeoPixel
• Solid Colors: Set specific colors for status indication

Real-Time Clock (DS3231)

• Read and set the current time
• Use RTC for wake-from-sleep scheduling

SD Card Operations

• List Files: Browse the microSD card contents
• Save ADC to SD: Log analog readings to CSV
• Save RTC to SD: Log timestamped data
• Name Files With RTC: Automatically name log files by date
• SD All Functions: Comprehensive SD card read/write demo
• Deep Sleep SD: Full low-power logging workflow

Battery & Power

• VBAT: Read LiPo battery voltage via the built-in voltage divider
• VBUS Sense: Detect whether USB power is connected
• Stats: Display system information

The bdl.py Helper Module

The CircuitPython examples use bdl.py, a helper module that pre-configures all the Bee Data Logger's pins and peripherals for easy access.

Links

• CircuitPython Board Page
• CircuitPython Examples
• Pin Card Reference