This is the hardware subsystem of the Microplate-Reader project.
The LED driver is a PCB board containing 8 CN5711 LED driver ICs. It can control the LED intensities independently through PWM. It is drawn using EasyEDA.
The photodiode amplifier is a circuit to convert photodiode current to voltage for the MCU ADC to sample. We use a photovoltaic circuit built on a breadboard with general-purpose op-amps (MCP6002).
The LED and photodiode are two PCB boards meant to work together to cover a row of 8 wells in a 96-well microplate. They are drawn from Altium Designer student edition.
This is the stepper motor driver.
- A 12V wall plug for the stepper motor driver
- A DC-DC converter to provide 5V for the LED driver
- Breadboard
- Jumper Wires
You may also need a soldering iron to make connections.