{"title":"SparkFun Logomatic v2 - Serial SD Datalogger (FAT32)","handle":"sparkfun-logomatic-v2-serial-sd-datalogger-fat32","url":"/products/sparkfun-logomatic-v2-serial-sd-datalogger-fat32","description":"The SparkFun Logomatic v2 is a versatile serial and analogue data logger built around the NXP LPC2148 ARM7 microcontroller. It logs data to a microSD card in FAT32 format and appears as a USB mass storage device, so log files can be downloaded by simply dragging and dropping — no special software required.\n\nThe board ships with firmware for basic serial text and analogue logging but is designed to be easily modified. The built-in USB bootloader allows firmware updates without an external programmer. A JST connector and onboard MCP73831 LiPo charger support battery-powered operation with USB charging.\n\nKey Features\n\n\nLPC2148 ARM7 – 512 KB user flash, 10 available GPIO pins\n\nFAT32 microSD Logging – Compatible with most SDHC cards (no 2 GB limit)\n\nUSB Mass Storage – Appears as a flash drive for easy log download\n\nBuilt-In USB Bootloader – Update firmware without an external programmer\n\nLiPo Battery Charging – MCP73831 charger (300 mA max) charges via USB\n\nJST Battery Connector – Supports LiPo batteries or other sources up to 7.5 V DC\n\nMicro-USB Connector – For data transfer, programming, and charging\n\n2 Status LEDs – Plus a micro-USB link LED\n\nExternal Interrupt Pin – For event-triggered logging\n\n\nSpecifications\n\n\nMicrocontroller – NXP LPC2148 (ARM7)\n\nFlash – 512 KB\n\nGPIO – 10 available pins\n\nStorage – microSD (FAT32, SDHC compatible)\n\nUSB – Micro-USB, mass storage device\n\nBattery Charger – MCP73831, 300 mA max\n\nInput Voltage – Up to 7.5 V DC (via JST)\n\nDimensions – 38 × 61 mm (1.5\" × 2.4\")\n\n\nIdeal For\n\nLogging analogue sensor data in the field\nSerial data capture from GPS, IMU, or other serial devices\nBattery-powered environmental monitoring\nEvent-triggered data logging\n\n\nResources\n\nHookup Guide\nSchematic (PDF)\nEagle Files\nLPC2148 Datasheet (PDF)\nDesign Files & Firmware (GitHub)\nAlternative Event Logging Firmware\n\n\nPackage Contents\n\n1× SparkFun Logomatic v2 Board\n","vendor":"SparkFun","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":12947,"title":"Default Title","sku":"SF-WIG-12772","price":141.45,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}],"documents":[{"title":"Logomatic v2 Schematic","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDoQwBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--b5e0ff0b1d7f4fc60358b45bb105e8fdca2e066b/Logomatic.pdf","link":false,"file_extension":"PDF","file_size":171627,"description":"Circuit schematic for the SparkFun Logomatic v2 datalogger board."},{"title":"LPC2148 Microcontroller Datasheet","type":"datasheet","type_label":"Datasheet","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDogwBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--a5d3f617616ae2b403866410446e0db9cfd266b9/LPC2141_42_44_46_48.pdf","link":false,"file_extension":"PDF","file_size":400734,"description":"Technical datasheet for the NXP LPC2148 MCU used on the Logomatic v2."},{"title":"Logomatic v2 Eagle Design Files","type":"schematic","type_label":"Schematic","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDowwBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--ca6791b2a09053e67e2904ce68adf4416f4f82a9/Logomatic.zip","link":false,"file_extension":"ZIP","file_size":185520,"description":"Eagle PCB and schematic design files for the Logomatic v2 board."},{"title":"Supplier page — sparkfun.com","type":"supplier_description","type_label":"Supplier Description","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDBhwBSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--fe3169451d4aa641f4b47459bcdf92e3c92c5a15/sparkfun-logomatic-v2-serial-sd-datalogger-fat32-sparkfun-com-2026-05-13.pdf","link":false,"file_extension":"PDF","file_size":733986,"description":"Snapshot of https://www.sparkfun.com/sparkfun-logomatic-v2-serial-sd-datalogger-fat32.html (captured 13 May 2026)"},{"title":"Firmware","type":"firmware","type_label":"Firmware","url":"https://littlebirdelectronics.com.au/rails/active_storage/blobs/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkDVEYDSSIIcHVyBjsAVEkiDGJsb2JfaWQGOwBG--a701b34b2e279b0f0d7d43ef65c4ac5ebd0e019d/Firmware.zip","link":false,"file_extension":"ZIP","file_size":148853}]}