zciwor
Joined 6 years ago
Joined 6 years ago
I've got an LTE module connected to a solenoid lock. The module listens for a "checkout complete" callback from a Stripe payment link which will unlock the solenoid. There's also some weight sensing involved to track the current product inventory inside the cabinet.
I built this for a family friend who does a lot of wellness outreach around combating food deserts by introducing small scale farming to local schools.
As a result of their community bee hives, they have a bunch of excess honey. So, I thought I’d build them this little honey vending cabinet for their neighborhood.
I've expanded the service a bit to be more product agnostic, maybe someone else can find a use for it.
When I'm starting a new hardware design, I find myself pulling up familiar boards (like Adafruit or Sparkfun's dev boards) as often as the chip's application note. I sometimes prefer a full reference project so I can get useful context like which voltage regulator they used or how the USB port is connected.
But, it's kind of an awkward process because I'll have to download the design files from Github and open it in the native CAD software (Eagle, for example).
I've been toying with how to solve this. I made a script to crawl Github for open hardware designs, then generate a schematic and interactive BOM for each design. Now, hopefully, you can search for "ESP32"[1] or "WiFi"[2] or "Bluetooth"[3] and get a number of designs to view in browser.
[1] https://www.openappnote.dev/tags/esp32/1 [2] https://www.openappnote.dev/tags/wifi/1 [3] https://www.openappnote.dev/tags/bluetooth/1
- Specialty: IoT Software
- Technologies: Typescript, NodeJS, React, Python, React Native, AWS, Zephyr RTOS, Bluetooth Low Energy, MongoDB, PCB Design, 3D Design, ESP32, Cellular IoT, NodeJS, Arduino
- Email: [email protected]
- Website: https://www.ubiqueiot.com
- LinkedIn: https://www.linkedin.com/in/eric-pietrowicz-8110b17a/
I consider myself a truly full-stack IoT engineer. My experience spans from hardware design all the way to the cloud infrastructure to support it. Projects usually involve low power WiFi, Cellular, or Bluetooth connected devices.
- Remote: Yes or Hybrid
- Specialty: IoT Software
- Technologies: Typescript, React, Python, React Native, AWS, Zephyr RTOS, Bluetooth Low Energy, MongoDB, PCB Design (KiCAD), 3D Design (OnShape), ESP32, Cellular IoT, NodeJS, Arduino
- Email: [email protected]
- Website: ubiqueiot.com
- LinkedIn: https://www.linkedin.com/in/eric-pietrowicz-8110b17a/
I consider myself a truly full-stack IoT engineer. My experience spans from hardware design all the way to the cloud infrastructure to support it. Projects usually involve low power WiFi or Bluetooth connected devices.
I hated having to open an excel spreadsheet after dinner with friends. Snap a picture of a receipt, send them the URL, and let them claim what they ordered.
OCR and ML is finally good enough to reliably itemize a receipt, even with variable templates and layouts.