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STD Xiao Level Up Board
A Xiao form factor board for optional level shifting with the use a jumper.
.I have three uses for this board:
In the past I took care of this by assembling an inline level shifter. It works well but I prefer simplicity with enclosures and it makes things a bit more difficult as each DIY board has slightly different dimensions.
I've added an article detailing the board and included some test related code as part of it.
ID | Name | Designator | Footprint | Quantity | Resistance (Ohms) | |
---|---|---|---|---|---|---|
1 | 100nF | C2,C4 | C0805 | 2 | AC0805KKX7R0BB104 | |
2 | HY2.0-4P | I2C,SERIAL | CONN-SMD_4P-P2.00_HY2.0-4P | 2 | HY2.0-4P | |
3 | I2C Voltage | I2C_LVL | HDR-SMD_3P-P2.54-V-M-LS4.8_R1 | 1 | X6511WVS-03H-C60D48-R1 | |
4 | BSS138_C400505 | Q1,Q2,Q4,Q5 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | 4 | BSS138_C400505 | |
5 | 4.7kΩ | R1,R3,R4,R6,R10,R12,R13,R15 | R0805 | 8 | RMC08054.7K1%N | |
6 | 220Ω | R2,R5,R11,R14 | R0805 | 4 | RC0805FR-07220RL | |
7 | Serial Voltage | SERIAL_LVL | HDR-SMD_3P-P2.54-V-M-LS4.8_R1 | 1 | X6511WVS-03H-C60D48-R1 | |
8 | Xiao | U1 | SEEEDUINO_XIAO | 1 | SEEEDUINO XIAO | |
9 | PIN HEADER 1X7PIN 2.54MM 7P OK | U2,U3 | PIN HEADER 1X7PIN 2.54MM 7P | 2 | PIN HEADER 1X7PIN 2.54MM 7P OK |
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