USBTTL
USBTTL is an open source PCB design by pioneers: a 2-layer, 26 × 32 mm board with 11 components (8 distinct parts). It is built around the CH340G.
PiElectrical Work and Documentation
To Do: - Add battery calibration (Added switch, WIP for runtime) - Create DC-DC Converter (Work In Progress) - Fix battery shorting problem (Complete) - Remove power from data port, optional power using shortings (Complete) - Consider using different port for 5v (Kept as USB)
To Do: Large Revision - Find a switch rated for 50A @ 12VDC - Fuse each motor controller port with 7.5A slow-blow fuse (MC rated for 2x 3.5A motors) (Blows in 20Sec at 10A) - Add 40A slow-blow fuse for battery. (Blows in 5 min @ 50A, Blows in 20 sec @ 55A) (Battery Max is 55A) - Add 7.5A slow-blow fuse for 5V rail.…
Built around
Parts list
11 components, 8 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CH340G | SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | 12MHZ 12MHz | JYJE S1C12000VWFAC | Y1 |
| 2 | CONN_01X08_PIN Conn_01x08_Pin | PinHeader_1x08_P2.54mm_Vertical | J1, J2 |
| 1 | USB_Type_A | USB-A_female | USB1 |
| 1 | 0.01UF 0.01uF | C_0603_1608Metric | C1 |
| 1 | 0.1UF 0.1uF | C_0603_1608Metric | C2 |
| 2 | 22PF 22pF | C_0603_1608Metric | C3, C4 |
| 2 | 22 | R_0603_1608Metric | R1, R2 |
More boards in PiElectrical
PDB
112.1 × 88.3 mm72 parts2LNo license8
Gabesam board
109.5 × 59 mm25 parts2LNo license8
DC-DC converter v2
53.3 × 27 mm21 parts2LNo license8
Test Board
58.8 × 24.5 mm20 parts2LNo license8
Simon Says
104.4 × 58.1 mm16 parts2LNo license8
Turbo PCB Design
32.4 × 29.9 mm7 parts2LNo license8
PiE team flag
45.7 × 50.8 mm7 parts2LNo license8
Servocontrollerproject
40.3 × 52.4 mm5 parts2LNo license8
Ultrasonic
40.5 × 45.8 mm4 parts2LNo license8