
PRJ
Juniper-Rueter/PR-J
A universal load cell amplifier for communication with klipper and an open standard for strain gauges

BoardDesign is an open-source printed circuit board by Jorbis21, from the Jorbis21/TFG repository on GitHub. It is a 4-layer board of 33.1 × 53 mm with 39 parts on 48 nets, routed with 417 tracks and 76 vias.
It is built around the ESP32-C3-MINI-1, HX717 and RT9080-33GJ5, with the USBLC6-2P6 among its other parts. Its parts include 10 resistors, 8 capacitors, 4 ICs, 4 connectors and 4 switches. It belongs with the ESP32 and RISC-V boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | TestPoint | custom_footprints:TestPoint_Pad_D1.5mm_nosilk | TP1, TP2, TP3, TP4, TP6, TP7, TP8 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C5, C8 |
| 4 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2, C4, C6, C7 |
| 4 | 5k1 | Resistor_SMD:R_0603_1608Metric | R3, R4, R8, R9 |
| 4 | SW_SPST | Footprints:TS1187ABAB | SW1, SW2, SW3, SW4 |
| 3 | Conn_01x04_Socket | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1, J3, J4 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R7, R10 |
| 2 | 51 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 1 | 27K | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 47K | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | ESP32-C3-MINI-1 | PCM_Espressif:ESP32-C3-MINI-1 | U2 |
| 1 | HX717 | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | IC1 |
| 1 | RT9080-33GJ5 | Package_TO_SOT_SMD:TSOT-23-5 | IC2 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J2 |
It measures 33.1 × 53 mm and has 4 copper layers, 1.61 mm thick.
39 parts, built around the ESP32-C3-MINI-1, HX717, RT9080-33GJ5 and USBLC6-2P6. 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 Jorbis21/TFG repository on GitHub, at the commit this page was made from: the board is Kicad/BoardDesign/BoardDesign.kicad_pcb and its schematic Kicad/BoardDesign/BoardDesign.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask Jorbis21 before reusing the design.

Juniper-Rueter/PR-J
A universal load cell amplifier for communication with klipper and an open standard for strain gauges

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