
T1conv
ajefferies2/t1conv
100BASE-T1 ↔ 100BASE-TX media converter + dual CAN FD/USB adapter on one board.

A specialised datalogger for superpressure balloon manufacturing
Alakol is an open-source printed circuit board by richardeoin, from the richardeoin/alakol repository on GitHub. It is a 4-layer board of 78 × 56 mm with 118 parts on 105 nets, routed with 849 tracks and 157 vias.
It is built around the STM32H743VIT6, LTC2064IMS8#PBF and AD8226BRZ, with the 2SMPP-02, MS560702BA03-50 and REF3325AIDCK among its other parts. Its parts include 46 resistors, 37 capacitors, 9 ICs, 6 diodes and 5 connectors. It belongs with the sensors and measurement boards and the STM32 boards of this library.


Hardware is licensed under CERN OHL v1.2. See LICENSE.md
| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100nF | agg:0402 | C2, C4, C10, C14, C15, C19, C20, C22, C24, C28, C29, C30, C32, C35, C36 |
| 12 | 10kΩ | agg:0402 | R14, R15, R16, R17, R18, R19, R20, R23, R34, R37, R38, R46 |
| 7 | 2.2µF | agg:0603 | C5, C17, C18, C21, C23, C25, C33 |
| 7 | 22Ω | agg:0402 | R21, R22, R24, R25, R26, R27, R28 |
| 6 | 1kΩ | agg:0402 | R6, R29, R32, R33, R36, R41 |
| 5 | 10kΩ 1% | agg:0402 | R4, R10, R12, R40, R43 |
| 4 | 10nF | agg:0402 | C6, C12, C13, C34 |
| 4 | 1nF 5% | agg:0402 | C1, C11, C31, C37 |
| 4 | BLM15EG221SN | agg:0402 | FB1, FB2, FB3, FB4 |
| 3 | 10kΩ 0.1% | agg:0402 | R1, R3, R11 |
| 3 | 330Ω | agg:0402 | R2, R31, R35 |
| 2 | 100kΩ | agg:0402 | R5, R39 |
| 2 | 100Ω | agg:0402 | R8, R42 |
| 2 | 10µF | agg:0603 | C7, C8 |
| 2 | 18pF | agg:0402 | C26, C27 |
| 2 | 1µF | agg:0402 | C3, C9 |
| 2 | AD8226 | agg:MSOP-8 | U3, U6 |
| 2 | PART | rem:drill | X1, X4 |
| 2 | SM4007PL-TP | Diode_SMD:D_SOD-123F | D5, D6 |
| 2 | SWITCH_DPST | rem:SW_PUSH-12mm-OMRON_4xxx_5xxx | SW2, SW3 |
| 1 | 08B0-1X1T-06-F | rem:08B0-1X1T-06-F | J2 |
| 1 | 0Ω | agg:0402 | R45 |
| 1 | 100pF | agg:0402 | C16 |
| 1 | 1MΩ | agg:0402 | R44 |
| 1 | 2.6kΩ | agg:0402 | R7 |
| 1 | 25MHz | agg:XTAL-50x32 | Y2 |
| 1 | 27kΩ 1% | agg:0402 | R9 |
| 1 | 2SMPP-02 | rem:2SMPP-02 | U5 |
| 1 | 6.8kΩ 1% | agg:0402 | R13 |
| 1 | 6k49Ω | agg:0402 | R30 |
| 1 | BC817 | agg:SOT-23 | Q1 |
| 1 | BSS138BK | agg:SOT-23 | Q2 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal | J4 |
| 1 | CONN_01x08 | agg:SIL-254P-08 | J1 |
| 1 | DSC6083 | rem:XTAL-32x25-CDFN4 | Y1 |
| 1 | K Type | rem:PCC-SMP | TC1 |
| 1 | KSZ8081RNx | agg:QFN-24-EP-MICREL | IC1 |
| 1 | LED-blue | agg:0603-LED | D3 |
| 1 | LED-orange | agg:0603-LED | D2 |
| 1 | LED-red | agg:0603-LED | D1 |
| 1 | LTC2064IMS8 | agg:MSOP-8 | U1 |
| 1 | MS5607-02BA03 | agg:MS5611 | IC3 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | RB160MM-60TR | Diode_SMD:D_SOD-123 | D4 |
| 1 | REF3325AIDCK | agg:SOT-323 | U4 |
| 1 | Rotary_Encoder | rem:PEC11R-4xxxF-Nxxxx | SW1 |
| 1 | SMD_XTAL_38.4_MHz | agg:XTAL-25x20 | Y3 |
| 1 | STM32H743VIT6 | agg:LQFP-100 | IC2 |
| 1 | SWD | rem:FTSH-105-01-L-DV-K-ANCHOR | P1 |
| 1 | Side PCB | rem:Omron_Playbook_Footprint | J3 |

ajefferies2/t1conv
100BASE-T1 ↔ 100BASE-TX media converter + dual CAN FD/USB adapter on one board.




afewyards/HydroMix
A mains-powered, Zigbee-connected controller for a hydronic 3-way mixing valve — it regulates the supply-water temperature of a floor heating/cooling system and keeps regulating autonomously if the Zigbee link goes down.

stanford-ssi/samwise-avionics
Avionics for 2U Rev of Sputnik Satellite


It measures 78 × 56 mm and has 4 copper layers, 1.6 mm thick.
118 parts, built around the STM32H743VIT6, LTC2064IMS8#PBF, AD8226BRZ and 2SMPP-02. 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 richardeoin/alakol repository on GitHub, at the commit this page was made from: the board is hardware/alakol.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 richardeoin before reusing the design.