The SparkFun DataLogger IoT – 9DoF serves as a preprogrammed data logger that seamlessly records data from IMU, GPS, pressure, humidity, and distance sensors. Remarkably, this functionality doesn’t require any coding effort. The DataLogger effortlessly identifies, sets up, and logs Qwiic sensors. It caters particularly to users seeking to effortlessly accumulate extensive data into formats like CSV or JSON, allowing them to swiftly return to their larger-scale projects. Data can be stored on a microSD card or transmitted wirelessly to a preferred Internet of Things (IoT) service.
Embedded within each DataLogger IoT is an IMU that facilitates automatic logging of readings from a triple-axis accelerometer, gyro, and magnetometer. While the original 9DOF Razor relied on the older MPU-9250, the DataLogger IoT adopts the ISM330DHCX by STMicroelectronics and MMC5983MA from MEMSIC. The operation is simple: power up the DataLogger IoT, set up the board to record data from supported devices, and initiate the logging process. Timestamps can be applied when synchronized with NTP, GNSS, or RTC time sources.
Features

ESP32-WROOM-32E Module

Integrated 802.11b/g/n WiFi 2.4GHz transceiver
Configurable via CH340C

Operating voltage range

3.3V to 6.0V(via VIN)
5V with USB (via 5V or USB type C)
3.6V to 4.2V with LiPo battery (via BATT or 2-pin JST)
Built-in MCP73831 single cell LiPo charger
Minimum 500mA charge rate
3.3V (via 3V3)

MAX17048 LiPo Fuel Gauge
Ports

1x USB type C
1x JST style connector for LiPo battery
2x Qwiic enabled I2C
1x microSD socket

Support for 4-bit SDIO and microSD cards formatted to FAT32

9-axis IMU

Accelerometer & Gyro (ISM330DHCX)
Magnetometer (MMC5983MA)

LEDs

Charge (CHG)
Status (STAT)
WS2812-2020 Addressable RGB

Jumpers

IMU interrupt
Magnetometer interrupt
RGB LED
Status LED
Charge LED
I2C pull-up resistors
USB Shield

Buttons

Reset
Boot

Dimensions: 1.66in. x 2.00in.
Weight: 10.7g

Resources

Schematic
Eagle Files
Board Dimensions
Hookup Guide
CH340 Drivers
Firmware
GitHub Hardware Repo

FAQs:
Q: What sensors are included in the SparkFun Datalogger IoT 9DoF?
A: The datalogger includes an onboard 9DoF IMU (accelerometer, gyroscope, magnetometer), and supports additional Qwiic environmental and GPS sensors (not included).
Q: Can I use this datalogger without any programming knowledge?
A: Yes, the datalogger comes pre-programmed, allowing you to start logging data to a microSD card or cloud service without writing any code.
Q: Which cloud services are compatible with the datalogger?
A: The datalogger supports various IoT services like MQTT, AWS IoT, ThingSpeak, Azure IoT, Arduino Cloud, and more, enabling you to easily send data to your preferred platform.
Q: What is the battery life of the datalogger?
A: The datalogger has a built-in LiPo battery charger and supports low-power logging, with a sleep current of approximately 200A when sleep mode is enabled. Battery life will vary depending on usage and configuration.
Q: What is the sampling rate of the datalogger?
A: The datalogger can be configured to take readings from 1 reading every 24 hours to about 26 times a second with default sensors, allowing you to adjust the sampling rate based on your needs.