PICado Alpha

PICado Alpha


PICado Apha

The PICado Alpha 1 Development Board is a simple microcontroller board with the big capabilities of Microchip’s 8-bit, 80-pin PIC18F7822 microcontroller combined with the HC-05 Bluetooth Module.

Hardware Detail
Processor (PIC18F8722)
On the PICado Alpha 1 Development Board it has the ability to install different Microcontrollers.
The default Microcontroller is the PIC18F8722.
It can also be used without hardware changes following devices:

  • PIC18LF8722
  • PIC18F8723
  • PIC18LF8723

For use of 3.3V devices as follows, you will see in the User Guide

  • PIC18(L)F87k22
  • PIC18(L)F87k23

Bluetooth Module HC-05
HC-05 embedded Bluetooth serial communication module has two work modes: order-response work mode and automatic connection work mode. And there are three work roles (Master, Slave and Loopback) at the automatic connection work mode. When the module is at the automatic connection work mode, it will follow the default way set lastly to transmit the data automatically. When the module is at the order-response work mode, user can send the AT command to the module to set the control parameters and sent control order.

Four FET power output stage
Four IRFML8244TRPBF N-channel FET used as power output stage.
The power output stages can switch up to 2.5A each. (Absolute Maximum Rating = 3A )

For details see the datasheet and schematic.

Switch
The switch provide the following function:

  • S1 – MCLR to hard reset the processor

Switch S1 has debounce capacitors. When pressed, the switch is grounded. When idle, he is pulled high (+5V).

LEDs
Tow SSC-SFT825N-S RGB LEDs, 1 connected to the Microcontroller and 1 connected to the HC-05 Bluetooth Module (red and green only). The blue Diode of the Bluetooth status LED is connected to the extension Pin Header and can be powered with up to 5V DC.

For details see the datasheet and schematic.
Voltage Regulator
The LM1117 is a low dropout voltage regulator with a dropout of 1.2V at 800mA of load current. It has the same pin-out as Texas Instruments' industry standard LM317.

  • Current Limiting and Thermal Protection
  • Output Current 800mA
  • Line Regulation 0.2% (Max)
  • Load Regulation 0.4% (Max)

For details see the datasheet and schematic.

Processor (PIC18F8722)
On the PICado Alpha 2 Development Board it has the ability to install different Microcontrollers.
The default Microcontroller is the PIC18F8722.
It can also be used without hardware changes following devices:

  • PIC18LF8722
  • PIC18F8723
  • PIC18LF8723

For use of 3.3V devices as follows, you will see in the User Guide

  • PIC18(L)F87k22
  • PIC18(L)F87k23

HC-05 embedded Bluetooth serial communication module has two work modes: order-response work mode and automatic connection work mode. And there are three work roles (Master, Slave and Loopback) at the automatic connection work mode. When the module is at the automatic connection work mode, it will follow the default way set lastly to transmit the data automatically. When the module is at the order-response work mode, user can send the AT command to the module to set the control parameters and sent control order.

# File Size Download
1 PICado_Alpha_1_UserGuide.pdf 1.2 MB Download
2 PICado_Alpha_1_Schematics.pdf 508 KB Download
3 PICado_Alpha_1_bill_of_materials.pdf 32 KB Download
4 pic18f8722.pdf 6.8 MB Download
5 HC-05_datasheet.pdf 933 KB Download
6 HC-05_commamd_set.pdf 83 KB Download
7 FET_IRFML8244TRPBF.pdf 197 KB Download
8 PICado_Alpha_1_SampleCode.zip 4 KB Download

About PICado

PICado are easy-to-use Microchip's PIC based development board. Combined with various features like Bluetooth and MOSFET output stages PICado offers many application possibilities.

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This website is currently under construction. Thank you for your understanding. Various bugs and missing pages are constantly fixed and supplemented.

Get in Touch

  • Email:
    info@picado.ch
  • Address:
    Jan Ritschard
    Rütiweg 16
    3114 Wichtrach
    Switzerland