Make your own power logger for electronics that you use in the house using INA219 chip, SSD1306 OLED display, Raspberry Pi 3, and Python. Story The drive for this project was the inspiration from (my opinion) a well known YouTuber, which presents electronics circuits, projects, and electronics basics videos (how capacitors, inductors, MOSFETs, etc.). …
Note: Full source (still not finished) is available github.com/drcrane/raspberryrfid. The Raspberry Pi has a few different interfaces available to it, one is I2C (a protocol created by Philips and used in many places, it is the basis of VESA DDC!). I had the opportunity recently to interface with an SL030 RFID Mifare reader, it is …
I2C is a multi-device bus used to connect low-speed peripherals to computers and embedded systems. The Raspberry Pi supports this interface on its GPIO header and it is a great way to connect sensors and devices. Once configured you can connect more than one device without using up additional pins on the header. Before using I2C …
I finished designing, etching and silkscreening a new board last night and started populating it. It’s a slight redesign of a board I did before last year’s AVC. What’s it for? Not telling yet. 🙂 I can say this. It’s an Arduino clone that will speak serial on one set of pins via NewSoftSerial and …
