
5v to bipolar15v PSU
tommassey/5v_to_bipolar15v_PSU
Small SMPS to provide ~200mA of +15v/-15v from a single 5v-12v DC supply

f860-breadboard-module
F860-breadboard module is an open-source printed circuit board by quietcat, from the quietcat/f860-breadboard-module repository on GitHub. It is a 4-layer board of 58.9 × 41.1 mm with 46 parts on 28 nets, routed with 203 tracks and 22 vias.
It is built around the C8051F860-C-GS and STPS140Z. Its parts include 9 connectors, 6 resistors, 5 capacitors, 4 diodes and 3 switches.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1K0 | Resistors_SMD:R_0603_HandSoldering | R4, R5, R6 |
| 2 | 0.1 | Capacitors_SMD:C_0805_HandSoldering | C3, C5 |
| 2 | 1.0 | Capacitors_SMD:C_1206_HandSoldering | C2, C4 |
| 2 | 470 | Resistors_SMD:R_0603_HandSoldering | R1, R8 |
| 2 | STPS140Z | Diodes_SMD:D_SOD-123 | D1, D3 |
| 1 | 22.0 | Capacitors_Tantalum_SMD:CP_Tantalum_Case-A_EIA-3216-18_Hand | C1 |
| 1 | 3K3 | Resistors_SMD:R_0603_HandSoldering | R7 |
| 1 | 3V3 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J7 |
| 1 | 5-12V | Connectors:BARREL_JACK | J1 |
| 1 | BOARD | Socket_Strips:Socket_Strip_Straight_1x16_Pitch2.54mm | J2 |
| 1 | BUS1-2 | Pin_Headers:Pin_Header_Straight_2x02_Pitch2.54mm | J4 |
| 1 | BUS2 SELECT | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J3 |
| 1 | C8051F860-C-GS | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U2 |
| 1 | DEBUG | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J10 |
| 1 | DPWR | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP1 |
| 1 | GND | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J8 |
| 1 | MCP1700-3302E_SOT89 | TO_SOT_Packages_SMD:SOT-89-3_Handsoldering | U1 |
| 1 | P1.2 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP2 |
| 1 | P1.2 | Buttons_Switches_SMD:SW_SPST_PTS645 | SW3 |
| 1 | P1.3 | LEDs:LED_1206_HandSoldering | D4 |
| 1 | P1.3 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP3 |
| 1 | POWER | Buttons_Switches_THT:SW_CuK_JS202011CQN_DPDT_Straight | SW1 |
| 1 | PWR | LEDs:LED_1206_HandSoldering | D2 |
| 1 | RESET | Buttons_Switches_SMD:SW_SPST_PTS645 | SW2 |
| 1 | UART | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J9 |
| 1 | VBUS | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J6 |
The 32 most common of 46 parts.

tommassey/5v_to_bipolar15v_PSU
Small SMPS to provide ~200mA of +15v/-15v from a single 5v-12v DC supply

dani9875/door_alarm_system
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nanographs/Open-Beam-Interface
Just what you need to control the beam and get an image.


tomverbeure/fake_parallel_printer
Capture traffic on parallel printer port to USB

azonenberg/latentred
Open hardware 48x 1000baseT + 2x 25G SFP28 Ethernet switch

It measures 58.9 × 41.1 mm and has 4 copper layers, 1.6 mm thick.
46 parts, built around the C8051F860-C-GS and STPS140Z. 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 quietcat/f860-breadboard-module repository on GitHub, at the commit this page was made from: the board is F860-breadboard-module.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask quietcat before reusing the design.