
Gimletlet
oxidecomputer/hw-gimletlet
More full-featured breakout board for the STM32H7, including many expansion headers for daughter boards. In active use for Hubris development and as a Swiss Army Knife around the lab

More full-featured breakout board for the STM32H7, including many expansion headers for daughter boards. In active use for Hubris development and as a Swiss Army Knife around the lab
Gimlet mgmt bringup is an open-source printed circuit board by oxidecomputer, from the oxidecomputer/hw-gimletlet repository on GitHub, published under the MPL-2.0 licence. It is a 6-layer board of 150 × 105 mm with 322 parts on 236 nets, routed with 2,991 tracks and 714 vias.
It is built around the ICE40LP1K-CM49, TPS82140SIL and VSC8552XKS-02, with the KSZ8463FRLI, PCA9555DB and SN74AXC8T245PW among its other parts. Its parts include 123 resistors, 102 capacitors, 16 diodes, 14 connectors and 11 ICs. It belongs with the FPGA and CPLD boards of this library.
More full-featured breakout board for the STM32H7, including many expansion headers for daughter boards.
In active use for Hubris development and as a Swiss Army Knife around the lab. Generally when someone is speaking about a "gimletlet" the mean gimletlet2 "Glorified Gimletlet" as a vanishingly small number of gimletlet1's were built and used for some very early network bring-up.

Some design notes for gimletlet2 More design notes for gimletlet2
Some mechanical specs
The OG gimletlet. Same CPU, nothing else is the same :)
very limited use, very limited quantity

very limited use, very limited quantity
Pairs with the gimletlet-1

| Qty | Value | Footprint | References |
|---|---|---|---|
| 84 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C101, C102, C103, C104, C105, C106, C107, C401, C402, C403, C404, C405, C407, C408, C409, C410 +68 |
| 45 | 10k | Resistor_SMD:R_0603_1608Metric | R101, R102, R103, R105, R106, R107, R108, R109, R110, R111, R112, R113, R114, R115, R116, R117 +29 |
| 41 | TestPoint | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP101, TP102, TP103, TP104, TP105, TP106, TP107, TP108, TP109, TP110, TP111, TP112, TP113, TP114, TP115, TP116 +25 |
| 24 | 49R9 | Resistor_SMD:R_0603_1608Metric | R305, R306, R310, R311, R319, R320, R324, R325, R404, R406, R413, R416, R510, R516, R520, R522 +8 |
| 15 | 0R | Resistor_SMD:R_0603_1608Metric | R301, R302, R308, R309, R315, R316, R322, R323, R504, R511, R534, R535, R601, R602, R603 |
| 12 | LED | LED_SMD:LED_0603_1608Metric | D503, D504, D505, D506, D507, D508, D509, D510, D601, D602, D603, D604 |
| 8 | 200R | Resistor_SMD:R_0603_1608Metric | R303, R304, R312, R313, R317, R318, R326, R327 |
| 8 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_901-144_Vertical | J101, J102, J103, J104, J107, J109, J110, J112 |
| 6 | 100k | Resistor_SMD:R_0603_1608Metric | R201, R203, R204, R205, R410, R518 |
| 6 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID101, FID102, FID103, FID104, FID105, FID106 |
| 4 | 130R | Resistor_SMD:R_0603_1608Metric | R609, R610, R611, R612 |
| 4 | 150R | Resistor_SMD:R_0603_1608Metric | R408, R411, R414, R418 |
| 4 | 18R | Resistor_SMD:R_0603_1608Metric | R307, R314, R321, R328 |
| 4 | 1N4148WS-G RVG | Diode_SMD:D_SOD-323 | D501, D502, D605, D606 |
| 4 | 1u | Capacitor_SMD:C_0805_2012Metric | C202, C203, C204, C208 |
| 4 | 22u | Capacitor_SMD:C_0805_2012Metric | C533, C534, C555, C556 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H101, H102, H103, H104 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C205, C209, C501 |
| 3 | 25 MHz | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | X401, X501, X601 |
| 3 | 4k7 | Resistor_SMD:R_0603_1608Metric | R605, R606, R607 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C406, C611 |
| 2 | 140R | Resistor_SMD:R_0603_1608Metric | R409, R417 |
| 2 | 22u | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D | C108, C206 |
| 2 | 2k | Resistor_SMD:R_0603_1608Metric | R104, R517 |
| 2 | SN74AXC8T245PW | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U102, U104 |
| 1 | 0.15u | Capacitor_SMD:C_0603_1608Metric | C512 |
| 1 | 100R | Resistor_SMD:R_0603_1608Metric | R401 |
| 1 | 220R | Resistor_SMD:R_0603_1608Metric | R502 |
| 1 | 22u | Capacitor_SMD:C_1210_3225Metric | C201 |
| 1 | 230-0000003 | Oxide_Graphics:Oxide_Board_Identifier_28x7mm | G101 |
| 1 | 309k | Resistor_SMD:R_0603_1608Metric | R202 |
| 1 | 430p | Capacitor_SMD:C_0603_1608Metric | C207 |
| 1 | 620R | Resistor_SMD:R_0603_1608Metric | R521 |
| 1 | 6k49 | Resistor_SMD:R_0603_1608Metric | R616 |
| 1 | 910R | Resistor_SMD:R_0603_1608Metric | R503 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | J113 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J108 |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J401 |
| 1 | Conn_02x15_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x15_P2.54mm_Vertical | J105 |
| 1 | Conn_02x16_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x16_P2.54mm_Vertical | J111 |
| 1 | ICE40LP1K-CM49 | Package_BGA:UCBGA-49_3x3mm_Layout7x7_P0.4mm | U401 |
| 1 | KSZ8463FRL | Package_QFP:LQFP-64_10x10mm_P0.5mm | U601 |
| 1 | PCA9555DB | Package_SO:SSOP-24_5.3x8.2mm_P0.65mm | U103 |
| 1 | SFF-8087_miniSAS | Oxide_Connector_SATA_SAS:SAS-mini_TEConnectivity_1888019_RightAngle | J106 |
| 1 | SN74AXC4T774PW | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U101 |
| 1 | TLV70012_SOT353 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U204 |
| 1 | TLV75710PDRV | Package_SON:WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U202 |
| 1 | TLV75725PDBV | Package_TO_SOT_SMD:SOT-23-5 | U201 |
| 1 | TPS82140 | Package_LGA:Texas_SIL0008D_MicroSiP-8-1EP_2.8x3mm_P0.65mm_EP1.1x1.9mm_ThermalVias | U203 |
| 1 | VSC8552XKS-02 | Package_BGA:BGA-256_17.0x17.0mm_Layout16x16_P1.0mm_Ball0.5mm_Pad0.4mm_NSMD | U501 |
| 1 | \ | Resistor_SMD:R_0603_1608Metric | FB601 |

oxidecomputer/hw-gimletlet
More full-featured breakout board for the STM32H7, including many expansion headers for daughter boards. In active use for Hubris development and as a Swiss Army Knife around the lab

oxidecomputer/hw-gimletlet
More full-featured breakout board for the STM32H7, including many expansion headers for daughter boards. In active use for Hubris development and as a Swiss Army Knife around the lab


oxidecomputer/hw-gimletlet-nic
Daughterboard for the Gimletlet 2 which uses a KSZ8463 to break out two ethernet (RJ-45) connectors. In active use for Hubris development.


har-in-air/ESP32_WROVER_BREAKOUT
Breadboard compatible breakout PCB for ESP32-WROVER with TPS82140 power supply



sneakylizard123-4/FPGA_Board
It is built around the Lattice iCE40 FPGA, designed to be programmed over USB through the on-board FT232H. The SPI flash boots the bitstream on power-up.

sneakylizard123-4/STM32H743
This board puts an STM32H743XIH6 and an iCE40 UP5K on the same PCB. The H743 handles control, USB, Ethernet, storage, and audio.
It measures 150 × 105 mm and has 6 copper layers, 1.57 mm thick.
322 parts, built around the ICE40LP1K-CM49, TPS82140SIL, VSC8552XKS-02 and KSZ8463FRLI. 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 oxidecomputer/hw-gimletlet repository on GitHub, at the commit this page was made from: the board is mgmt_network_gimlet1/gimlet-mgmt-bringup.kicad_pcb and its schematic gimletlet.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).