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boards:rkat28sb [2015/01/09 17:36] – darronboards:rkat28sb [2024/07/10 12:24] (current) – external edit 127.0.0.1
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-==== RK Education RKAT28sb ====+==== RKAT28sb ====
 <wrap right> <wrap right>
 {{:boards:rkat28sb.jpg?200}} {{:boards:rkat28sb.jpg?200}}
 +\\ \\
 +{{:boards:rkat28sb2.jpg?200}}
 </wrap> </wrap>
  
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 0V 0V
-0V                AD4 SDI +0V           PC5  AD5 SCL 
-5V                AD4 SDA+5V           PC4  AD4 SDA
 RX                   AREF RX                   AREF
 TX                    GND TX                    GND
-DTR               D13 SCK +DTR          PB5 D13  SCK 
-                 D12 MISO      +             PB4 D12 MISO      
-RST              D11 MOSI +RST          PB3 D11 MOSI 
-+3V3                  D10 ++3V3            PB2   D10 
-+5V                    D9 ++5V             PB1    D9 
-GND                    D8+GND             PB0    D8
 GND GND
-VIN                    D7 +VIN             PD7    D7 
-                       D6 +                PD6    D6 
-AD0                    D5 +AD0 PC0         PD5    D5 
-AD1                    D4 +AD1 PC1         PD4    D4 
-AD2                    D3 +AD2 PC2         PD3    D3 
-AD3                    D2 +AD3 PC3         PD2    D2 
-AD4 SDA             D1 RX +AD4 SDA PC4     PD1 D1 TX 
-AD5 SCI  246  RESET D0 TX +AD5 SCL PC5     PD0 D0 RX 
-         135 + 
-         ISP+        246   RESET 
 +        135 
 +        ISP 
 +         
 +NB ISP orientation is not Arduino UNO compatible
 </code> </code>
  
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 === Communications === === Communications ===
-A [[:interfaces:cp2104|cp2104]] serial module is well suited to connect to the RKAT28sb with it's built-in capacitor on DTR and is able to supply both 3V5 and 5V for VCC. The photo. top right, shows a cp2104 module in the background.+A [[:interfaces:cp2104|cp2104]] serial module is well suited to connect to the RKAT28sb with its built-in capacitor on DTR and is able to supply both 3V5 and 5V for VCC. The photo. top right, shows a cp2104 module connected. 
 + 
 +=== Boot loader === 
 +This kit doesn't come with a chip and therefore no boot loader. The processor I bought was blank but has been programmed with [[:tools:optiboot|Optiboot]]. 
 + 
 + 
 +=== ISP === 
 + 
 +A 6-pin ATMEL ISP header is present. This will require an ISP adapter for the [[:interfaces:usbasp|USBasp]]. 
 + 
 +<code> 
 +D12 MISO PB4 |1 2| VDD 
 +D13 SCK  PB5 |3 4| D11 MOSI PB3 
 +RESET        |5 6| GND 
 +</code>
  
 === Resources === === Resources ===
-[[http://www.rkeducation.co.uk/documents/instructions/RKAT28sbComponentListandInstructions.pdf|Constructors guide with schematic]]\\+{{downloads:RKAT28sbComponentListandInstructions.txt|Constructors guide}} 
 + 
 +{{downloads:rkat28sbschematic.pdf|Schematic}}