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fix broken link and formatting

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wolfv6 2016-09-28 15:44:44 -06:00
parent 07a66b0505
commit 6e3640d95f
4 changed files with 27 additions and 26 deletions
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2
README.md
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@ -31,7 +31,7 @@ It scans a key matrix just like the big keyboards.
The sketch is small because the keybrd library takes care of the low-level details.
It runs the breadboard keyboard in this picture.
<img src="tutorials/keybrd_1_breadboard/breadboard_keyboard_2x2.JPG" title="breadboard keyboard" alt="breadboard keyboard" height="290" width="328">
<img src="tutorials/keybrd_1_breadboard/basic_breadboard_keyboard_front.JPG" title="basic breadboard keyboard" alt="basic breadboard keyboard" height="290" width="328">
Example complex keybrd sketch
-----------------------------

4
tutorials/tutorial_10_writing_IOE_port_classes.md
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@ -17,8 +17,8 @@ Steps to writing a new port class:
* [SPI I/O expander example sketch](keybrd_4c_split_with_IOE/keybrd_4c_split_with_IOE.ino)
* [I2C I/O expander example sketch](../examples/keybrd_PCA9655E/keybrd_PCA9655E.ino)
5. Study other keybrd port classes.
* SPI I/O expander port classes: PortMCP23S17 PortWrite_MCP23S17 PortRead_MCP23S17
* I2C I/O expander port classes: PortWrite_PCA9655E PortRead_PCA9655E
* SPI I/O expander port classes: Port_MCP23S17
* I2C I/O expander port classes: Port_PCA9655E
6. Write the port classes for your I/O expander.
Debugging I/O expander code is hard because SPI or I2C protocol adds a level of indirection.

2
tutorials/tutorial_1_breadboard_keyboard.md
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@ -104,7 +104,7 @@ Breadboard keyboard assembly instructions:
![basic breadboard keyboard overhead](keybrd_1_breadboard/basic_breadboard_keyboard_overhead.JPG "basic breadboard keyboard overhead")
3. Insert jumper wires to connect Arduino pins to the matrix rows and columns.
* [Teensy LC pinout diagram](https://www.pjrc.com/teensy/card6a_rev2.png).
* refer to the [Teensy LC pinout diagram](https://www.pjrc.com/teensy/card6a_rev2.png).
* row_0 is the top row, and col_0 is the left column
| Pin number | Connects to |

45
tutorials/tutorial_4b_split_keyboard_with_shift_registers.md
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@ -33,30 +33,31 @@ Switches are connected to power (red bus) and shift register input pins (jumpers
This table lists what gets connected to the 74HC165 pins:
```
74HC165 left (lower half of breadboard)
NAME PIN# DESCRIPTION TO TEENSY LC PIN# CHAIN
SH/LD 1 shift or load input CS0 10 green wire
CLK 2 clock input SCK0 13 yellow wire
D4 3 parallel input
D5 4 parallel input
D6 5 parallel input
D7 6 parallel input
/QH 7 ~serial output
GND 8 ground gnd blue bus
**74HC165 left (lower half of breadboard)**
74HC165 right (upper half of breadboard)
NAME PIN# DESCRIPTION TO TEENSY LC PIN# CHAIN
VCC 16 power pin 3.3V red wire
CLK INH 15 clock inhibit blue bus
D3 14 parallel input
D2 13 parallel input
D1 12 parallel input
D0 11 parallel input
SER 10 serial input blue wire to next QH
QH 9 serial output MISO0 12 blue wire to previous SER
|NAME |PIN#|DESCRIPTION |TO TEENSY LC PIN#|CHAIN |
|--------|:--:|--------------------|-----------------|-----------|
|SH/LD |1 |shift or load input |CS0 10 |green wire |
|CLK |2 |clock input |SCK0 13 |yellow wire|
| D4 |3 |parallel input | | |
| D5 |4 |parallel input | | |
| D6 |5 |parallel input | | |
| D7 |6 |parallel input | | |
|/QH |7 |~serial output | | |
|GND |8 |ground |gnd |blue bus |
```
**74HC165 right (upper half of breadboard)**
|NAME |PIN#|DESCRIPTION |TO TEENSY LC PIN#|CHAIN |
|--------|:--:|--------------------|-----------------|-------------------------|
|VCC |16 |power pin |3.3V |red wire |
|CLK INH |15 |clock inhibit | |blue bus |
| D3 |14 |parallel input | | |
| D2 |13 |parallel input | | |
| D1 |12 |parallel input | | |
| D0 |11 |parallel input | | |
|SER |10 |serial input | |blue wire to next QH |
| QH | 9 |serial output |MISO0 12 |blue wire to previous SER|
![breadboard keyboard with shift_registers](keybrd_4b_split_keyboard_with_shift_registers/overhead.JPG )