# ESP32 Data Logger w/RTC & SD The Bee Data Logger - an ESP32-S3 data logging beast. - **Seller:** [Smart Bee Designs LLC](https://lectronz.com/stores/smartbeedesigns), Delphi, Indiana, United States - **Price:** $34.99 (USD, before shipping and taxes) - **Availability:** Sold out - **Categories:** ESP32, I2C, Sensors - **Product page:** https://lectronz.com/products/esp32-data-logger ## Options **i2c Extender** - None - i2c Extender [Add $2.50] (42 left) **i2c Extender XL** - None (28 left) - i2c Extender XL [Add $2.50] (43 left) **Screw Terminal Breakout Board** - None - Screw Terminal Breakout Board [Add $5.99] (15 left) ## Links - [Documentation](https://github.com/strid3r21/Bee-Data-Logger) - [Code](https://github.com/strid3r21/Bee-Data-Logger/tree/main/Code) - [Schematics](https://github.com/strid3r21/Bee-Data-Logger/tree/main/Schematic) ## Images ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU0MywicHVyIjoiYmxvYl9pZCJ9fQ==--ee21f1722f1fe495be96df4750caac5286c28865/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-07-02T18-09-33.649Z-_NZ64330.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU0NCwicHVyIjoiYmxvYl9pZCJ9fQ==--d190476e011339c3e2113eb0d9abd7a434b0215e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-07-02T18-09-33.649Z-_NZ64335.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU0NSwicHVyIjoiYmxvYl9pZCJ9fQ==--25c29b7520b0c0aa2f7d4efa669d5082bda596a4/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-07-02T18-09-33.649Z-_NZ64332.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU0NiwicHVyIjoiYmxvYl9pZCJ9fQ==--2164a91072964cecd424736935c4dbe10afec4cc/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-07-02T18-09-33.649Z-_NZ64336.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU0NywicHVyIjoiYmxvYl9pZCJ9fQ==--da6d3aec5ea6c2ea50f643cc778d8b6c1250b377/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-07-02T18-09-33.649Z-_NZ64325.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU0OCwicHVyIjoiYmxvYl9pZCJ9fQ==--811a404aad4a27495d8804631dceb3fea44720ac/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-07-02T18-09-33.649Z-_NZ64318.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTQ5MDQsInB1ciI6ImJsb2JfaWQifX0=--ca5d49237fadefcd6ce3c63d7fec8a4ab57544ba/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/_NZ69254.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU0OSwicHVyIjoiYmxvYl9pZCJ9fQ==--e343e0a6f7600e6d456ba33929ca3b4a5310018a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/2023-07-02T18-22-39.426Z-Pin-Card-front.png) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU1MCwicHVyIjoiYmxvYl9pZCJ9fQ==--de547c2539b7889d26a78b43276f66b4187cba10/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/2023-07-02T18-22-39.426Z-DeepSleep.png) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzU1MSwicHVyIjoiYmxvYl9pZCJ9fQ==--d0951a47b08a48d0e5ccfabfe11b466a74f7e21f/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-07-03T12-06-35.820Z-i2c-extender-example.jpg) ![ESP32 Data Logger w/RTC & SD](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MTQ5MDgsInB1ciI6ImJsb2JfaWQifX0=--8abc80c71c3dc556cea93d26b3c60e3c78bf84fd/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/_NZ69250.jpg) ## Description Introducing the Bee Data Logger, the next installment in the esp32 [Bee product](https://www.lectronz.com/stores/smartbeedesigns) family. The bee data logger is a full featured data logging beast packed with features and designed from the ground up to be as energy efficient in deepsleep as possible with a deepsleep current around 21uA! #### Features - High precision RTC built in (DS3231) - CR1220 RTC battery backup. - Micro SD card slot for storing data. (supports up to 16gb micro sd cards) - Dual 600ma LDOs for extra power headroom for powering external sensors. - Dual stemma/qwiic connectors for easily attaching adafruit/sparfun sensor breakout boards. - 1S LiPo battery connector - LiPo battery charging circuitry - Battery on/off switch. - LiPo battery voltage monitoring to track battery life. - USB-C - USB detection circuitry - Open Source - Designed and assembled in the USA - Breadboard friendly - Supports Arduino & Circuit Python with many example sketches. Visit the [Github](https://github.com/strid3r21/Bee-Data-Logger) for schematics,code examples, 3D models and much more! Join our growing community on [Discord](tinyurl.com/SmartBeeDesigns). With the 2 LDO's, one is always on to power the ESP32 in deepsleep and the 2nd shuts off in deepsleep to save power. 1 stemma connector is connected to 1 LDO that's always on and the other is attached to the 2nd LDO to shuts off in deepsleep. This allows you to attach adafruit/sparkfun sensor boards and not have them pull power in deepsleep if its not needed to be on 24/7. additionally there are 2 versions of an i2c extender board which allows attaching adafruit or some sparkfun sensor boards for a sleek compact data logging package. 1 extender holds 1 adafruit sensor, the XL holds 2 adafruit sensors. ### Pinout Card ![Pinout Card](https://imgur.com/HPaxH1v.jpg "enter image title here") ### DeepSleep Current ![DeepSleep](https://imgur.com/klkVX7a.jpg "enter image title here") **Disclaimer:** some of the stemma and lipo connectors may have cosmetic imperfections from the injection molding process. This is only cosmetic and does not effect the functionality of either connector. ## Shipping policy Items will be shipped within 3 business days, but usually they ship the next day. shipping times vary across the globe but typically international shipments arrive within 10-14 business days. US shipments typically arrive within 4 business days.