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google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards

A repository for our PSU ECE411 Practicum Project
ChargeGuard Pro Plus ECE411 is an open-source printed circuit board by creid89, from the creid89/ECE411_Group_Project repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 121 × 70 mm with 43 parts on 45 nets, routed with 266 tracks and 0 vias.
Its parts include 15 connectors, 14 resistors, 2 transistors and 1 diode. It belongs with the ESP32 boards of this library.
A repository for our PSU ECE411 Practicum Project
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R8, R9, R10, R11, R12, R13, R14 |
| 3 | 4.7k | Resistor_SMD:R_1206_3216Metric | R1, R2, R5 |
| 1 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 1k | Resistor_SMD:R_1206_3216Metric | R4 |
| 1 | 2.7k | Resistor_SMD:R_1206_3216Metric | R7 |
| 1 | 26 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R6 |
| 1 | 2N3906 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | 2N7000 | Package_TO_SOT_THT:TO-92_Inline | Q3 |
| 1 | 3.3V | Connector_Pin:Pin_D1.0mm_L10.0mm | TP6 |
| 1 | 5V(+) | Connector_Pin:Pin_D1.0mm_L10.0mm | TP2 |
| 1 | 5V(-) | Connector_Pin:Pin_D1.0mm_L10.0mm | TP1 |
| 1 | 8.2k | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | Adafruit_Feather_HUZZAH32_ESP32 | Module:Adafruit_Feather | A1 |
| 1 | BAT | Connector_Pin:Pin_D1.0mm_L10.0mm | TP8 |
| 1 | Barrel_Jack_MountingPin | Connector_BarrelJack:BarrelJack_GCT_DCJ200-10-A_Horizontal | J1 |
| 1 | Battery | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J15 |
| 1 | Buck Converter (12V) | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J2 |
| 1 | Buck Converter (5V output) | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J3 |
| 1 | Fan | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J5 |
| 1 | GND | Connector_Pin:Pin_D1.0mm_L10.0mm | TP5 |
| 1 | OLED I2C | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J14 |
| 1 | OLED Power | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J13 |
| 1 | Power PB | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J7 |
| 1 | Power Switch | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J4 |
| 1 | Protection jumper | TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm | JP1 |
| 1 | Relay Module Logic | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type055_RT01503HDWU_1x03_P5.00mm_Horizontal | J8 |
| 1 | Relay Module Power | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type055_RT01503HDWU_1x03_P5.00mm_Horizontal | J9 |
| 1 | Reset Switch | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J6 |
| 1 | SCL | Connector_Pin:Pin_D1.0mm_L10.0mm | TP4 |
| 1 | SDA | Connector_Pin:Pin_D1.0mm_L10.0mm | TP3 |
| 1 | Sensor I2C | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J12 |
| 1 | Sensor Power | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J11 |
| 1 | Solenoid | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J10 |
| 1 | VD | Connector_Pin:Pin_D1.0mm_L10.0mm | TP7 |
| 1 | Via | Connector_Pin:Pin_D1.0mm_L10.0mm | TP9 |
It measures 121 × 70 mm and has 2 copper layers, 1.67 mm thick.
43 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the creid89/ECE411_Group_Project repository on GitHub, at the commit this page was made from: the board is Schematics/ChargeGuard_Pro_Plus_ECE411/ChargeGuard_Pro_Plus_ECE411.kicad_pcb and its schematic Schematics/ChargeGuard_Pro_Plus_ECE411/ChargeGuard_Pro_Plus_ECE411.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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