PICO1TR-LED-L
The PICO1TR-LED-L is an 8x8 LED matrix that is designed to interface with a
PICO1TR. The board size is 2.1" x 3.625" with a
the 2.1" x 1" area to mount a
PICO1TR.
See the
PICO1TR-LED-L datasheet
for the assembly instructions, schematic and bill-of-materials.
Features
- 8x8 matrix of 5mm LEDs -- requires only nine I/O lines.
- 2.1" x 3.625"
- Mounting area for PICO1TR.
- Positions for six 6mm pushbuttons (Panasonic PAE04M or equivalent).
- Position for a potentiometer (Panasonic EVU-F2AF30B54 or equivalent).
- 100mil Header connector for the unused I/O lines -- RX and TX
(PD0, PD1), digital I/O lines (PB3, PB4, PB5) and analog I/O lines
(PC0, PC1, PC2, PC3, PC4, PC5).
Pricing
| Part Number
| Description
| Price | Qty
|
|
| PICO1TR-LED-L-G-KIT
| datasheet
| Panel containing a PICO1TR-LED-L and PICO1TR (328 + LDO) PCB and all components to build both Green LEDs.
| 20.00USD | | 1
|
|
|
| PICO1TR-LED-L-R-KIT
| datasheet
| Panel containing a PICO1TR-LED-L and PICO1TR (328 + LDO) PCB and all components to build both. Red LEDs.
| 20.00USD | | 1
|
|
|
Demo
The video (right) shows a
PICO1TR
mounted to a
PICO1TR-LED-L LED
matrix. By using
Charlie-plexing
the 8x8 matrix requires nine I/O lines. The remaining eleven ATmega328P I/O lines
are free.
The library used to create the example application has functions for
driving individual LEDs, a row of LEDs and the matrix of LEDs. There
is a Perl script that will convert an ASCII representation of the LED
matrix to a C data file.
Drill Templates
A drill template for the PICO1TR-LED-L is available. The template
is designed to provide a center mark for all mounting holes, control
components and indicators. The center is indicated by a gap between
the cross-hairs.
An easy way to drill multiple wood panels is to gang together the
panels and drill them all at the same time on a drill press. I mill
each panel to between 1/4" and 3/8", band them together and then drill
the group. To prevent blow-out of the bottom panel place a
sacrificial panel underneath.
To use the template to drill a wood panel --
- Print out the postscript file containing the template.
- Verify the print is 1:1 using the board measurements.
- Tape the template to a block of wood.
- Use a push-pin to mark the center of each hole.
- Drill the hole to the desired dimension. The diameters
indicated on the print are ≈ 10mils larger than the nominal
dimension of the component.
Pricing
| Part Number
| Description
| Price | Qty
|
|
| PICO1TR-LED-L-G-KIT
| datasheet
| Panel containing a PICO1TR-LED-L and PICO1TR (328 + LDO) PCB and all components to build both Green LEDs.
| 20.00USD | | 1
|
|
|
| PICO1TR-LED-L-R-KIT
| datasheet
| Panel containing a PICO1TR-LED-L and PICO1TR (328 + LDO) PCB and all components to build both. Red LEDs.
| 20.00USD | | 1
|
|
|
PICO1TR-LED-L-KIT Component List
The PICO1TR-LED-L kits contain the parts to build two PCB assemblies -- a PICO1TR and a PICO1TR-LED-L.
The PICO1TR-LED-L-G-KIT contains green LEDs. The PICO1TR-LED-L-R-KIT contains
red LEDs.
PICO1TR-LED-L-G-KIT Components
| Item Number
| Quantity
| Description
|
|
| 1
| 64
| LED, T 1 3/4, Green
|
| 2
| 1
| PICO1TR-KIT
|
| 3
| 1
| wiblock_PICO1TR-LED-L-PCB
|
|
PICO1TR-LED-L-R-KIT Components
| Item Number
| Quantity
| Description
|
|
| 1
| 64
| LED, T 1 3/4, Red
|
| 2
| 1
| PICO1TR-KIT
|
| 3
| 1
| wiblock_PICO1TR-LED-L-PCB
|
|
Educational Kits and Rapid Prototyping Tools
