We do love spreadsheets. We use them almost for everything. In this blog we will showing some useful examples.
This is a solar garden. Lighted at night by the sun and the moon.
This was our first analog electronic circuit, it has been working for the last year (from june 2011), non stop, so far so good.
It is a dark sensor, with a 555 timer, and a movement sensor.
We will try to explain how we made the design of the circuit.
First of all will begin with the 555 datasheet, this marvellous IC received its name because it has three 5 k resistors between Vcc and GND. This three resistors make a voltage divider. This means that if Vcc=12 V and GND=0 V, we will have 12 V, 8 V, 4 V and 0 V, from Vcc to GND. The 8 V will be the control voltage or threshold, the 4 V will be the trigger voltage.
In the next scheme and circuit simulation it is shown a simple voltage divider between 12 V and 0 V.
One of our beloved customers has installed a SolarCaptus at home. It is using it at night to illuminate his garden.
During this week the customer will be testing an electronic circuit from SolarTroning, this circuit will measure ambient light, will sense human beings movement, and will provide a timer for the CaptuSolar kit.
The design includes an ATMEL AVR ATtiny microcontroller, powered from a solar battery, programmed using C++ and assembler.
We are a group of skilled technicians and engineers from BCN Spain, our main target is to provide our customers with solar powered electronics and systems.