
DEV-20594 · SparkFunActive


A zero-code data logger with built-in 9DoF tracking. Automatically detect, configure, and log dozens of Qwiic sensors to a microSD card or the cloud. (SparkFun DEV-20594)
| Part number | DEV-20594 |
|---|---|
| Manufacturer | SparkFun |
| Category | Memory & Storage › SD & Storage Modules |
| Pins | 27 |
SparkFun DataLogger IoT - 9DoF pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | ESP18/SCK | bidirectional | |
| 2 | !RESET! | bidirectional | |
| 3 | ESP23/PICO | bidirectional | |
| 4 | ESP0/!BOOT! | bidirectional | |
| 5 | ESP19/POCI | bidirectional | |
| 6 | ESP36/A0 | bidirectional | |
| 7 | ESP33 | bidirectional | |
| 8 | ESP39/A3 | bidirectional | |
| 9 | GND | ground | |
| 10 | ESP35/A7 | bidirectional | |
| 11 | 3.3V | power | |
| 12 | ESP17/TXD | bidirectional | |
| 13 | GND | ground | |
| 14 | ESP16/RXD | bidirectional | |
| 15 | 5V | power | |
| 16 | ESP25/LED | bidirectional | |
| 17 | GND | ground | |
| 18 | ESP26/RGBLED | bidirectional | |
| 19 | V_BATT | bidirectional | |
| 20 | QWIIC_SCL | bidirectional | |
| 21 | QWIIC_SDA | bidirectional | |
| 22 | 3.3V_SW | bidirectional | |
| 23 | SHIELD | bidirectional | |
| 24 | SHIELD | bidirectional | |
| 25 | GND | ground | |
| 26 | SHIELD | bidirectional | |
| 27 | SHIELD | bidirectional |
Schematic symbol and footprint
Footprint: SparkFun DataLogger IoT - 9DOF (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Datasheet
Where to buy
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
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