Features
- Runs PicoMite (MaxiMite) BASIC (VGA, PS/2)
- Uses Land Boards cards
OPTIONs (Configuration)
OPTION LIST
OPTION KEYBOARD US
OPTION SDCARD GP13, GP10, GP11, GP12
OPTION AUDIO GP6, GP7
OPTION COLOURCODE ON
OPTION RESET
Raspberry Pi Pico in a Small Plastic Project Box
VGAX49
- VGAX49
- Resistors Values
- Selected for 0.7V output on analog RGB pins
- R12 = 270
- R6 = 390
- R7 = 820
- R1 = 270
|
R,B
|
|
G RES
|
|
G
|
Rs
|
75
|
|
R1
|
390
|
75
|
Rm
|
270
|
|
R2
|
820
|
264.298
|
Vin
|
3.3
|
|
RM
|
264.298
|
3.3
|
Vout
|
0.717
|
|
|
|
0.729
|
I (mA)
|
9.57
|
|
I (mA)
|
|
9.73
|
PS2X49
- PS2X49
- PWR1 is the power to the PS/2 #1, #2 connectors (5V)
- +3.3V powers the TXS0104 translator
- Routing
- CLK1, DAT1 on J3 go to J1 (Purple)
- CLK2, DAT2 on J3 go to J2 (Not used)
SD CARD X49
- SD CARD X49
- Install NO5V jumper
- Connect 3.3V power
- No 5V attached
- No U2 voltage regulator needed
GRID49 - Audio Filter
- C1 = Audio_In-L
- D1 - GND
- E1 - Audio_In-R
Cabling
FUNCTION
|
GP
|
PICO PIN
|
CARD
|
SIG
|
PIN
|
COLOUR
|
I2C1GND
|
GND
|
3
|
MCP23017
|
|
|
|
AUDIO-GND
|
GND
|
8
|
GRID49
|
AUD-GND
|
D1
|
BLK
|
AUDIO-L
|
GP6
|
9
|
GRID49
|
AUD-L
|
C1
|
VIO
|
AUDIO-R
|
GP7
|
10
|
GRID49
|
AUD-R
|
E1
|
YEL
|
PS2_CLK
|
GP8
|
11
|
PS2X49
|
CLK1
|
6
|
VIO
|
PS2_DATA
|
GP9
|
12
|
PS2X49
|
DAT1
|
8
|
YEL
|
PS2_GND
|
GND
|
13
|
PS2X49
|
GND
|
10
|
BLK
|
SD_SCK
|
GP10
|
14
|
SD_CARD_X49
|
SCLK
|
3
|
VIO
|
SD_MOSI
|
GP11
|
15
|
SD_CARD_X49
|
MOSI
|
4
|
BLU
|
SD_MISO
|
GP12
|
16
|
SD_CARD_X49
|
MISO
|
2
|
YEL
|
SD_SLVSEL
|
GP13
|
17
|
SD_CARD_X49
|
-SDCS
|
5
|
GRY
|
SD_GND
|
GND
|
18
|
SD_CARD_X49
|
GND
|
1
|
BLK
|
I2C1_SDA
|
GP14
|
19
|
MCP23017
|
SDA
|
|
YEL
|
I2C1_SCL
|
GP15
|
20
|
MCP23017
|
SCL
|
|
WHT
|
VGA_HSYNC
|
GP16
|
21
|
VGA
|
HS
|
17
|
GRY
|
VGA_VSYNC
|
GP17
|
22
|
VGA
|
VS
|
18
|
WHT
|
VGA_GND
|
GND
|
23
|
VGA
|
GND
|
19
|
BRN
|
VGA_BLU
|
GP18
|
24
|
VGA
|
B4
|
12
|
BLU
|
VGA_GRN_LO
|
GP19
|
25
|
VGA
|
G4
|
7
|
GRN
|
VGA_GRN_HI
|
GP20
|
26
|
VGA
|
G5
|
6
|
GRN
|
VGA_RED
|
GP21
|
27
|
VGA
|
R4
|
1
|
ORG
|
PS2_5V
|
VSYS
|
39
|
PS2X49
|
PWR1
|
2
|
ORG
|
PS2_3.3V
|
3.3V
|
BUS
|
PS2X49
|
3.3V
|
4
|
RED
|
SD_3.3V
|
3.3V
|
BUS
|
SD_CARD_X49
|
3.3V
|
7
|
RED
|