fast documentation of hardware and software projects
As part of the PlantBot project, I wanted a way to look at sensor data over the internet. These sensors are moisture, light and pressure. The main one is moisture, the other two were just added in because I had the parts lying around. Here is a block diagram outlining each of the steps to…
The title description is quite broad so allow me to explain more clearly what I’ve been working on for the past couple of weeks. Think of the television remote or more specifically using IR diodes and IR receivers to transmit information: This setup is all good when only one IR diode is transmitting at any…
Circuit Diagram: The biased signal generator signal is connected to AnalogIn 1 on the Tiva C which is pin PE_2. Signal Gen and Tiva C ground is common. The two 10k resistors from a voltage divider which will halve the 3v input to give a 1.5 v bias. The signal from the signal generator will…
The Tenma 72-7735 is a lower end DMM that comes with quite a few handy features including an opto-isolated serial output. This serial communication is over a cable with a male db-9 rs-232 serial connector on one end and a connector housing a photo-diode that fits into the multimeter on the other end. Here is…