UC-Aerospace/hotstoneAn ultra-cost-reduced version of Bluestone, for Hot Rockets
Hotstone is an open-source printed circuit board by UC-Aerospace, from the UC-Aerospace/hotstone repository on GitHub. It is a 4-layer board of 61.1 × 20 mm with 66 parts on 61 nets, routed with 347 tracks and 64 vias.
It is built around the SC0914(13), BME280 and W25Q128JVSIQ, with the AMS1117-3.3, CL10C270JB81PNC and RC1608J104CS among its other parts. Its parts include 24 capacitors, 13 resistors, 5 ICs, 4 connectors and 2 diodes. It belongs with the RP2040 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C6, C7, C8, C9, C10, C11, C13, C16, C17, C18, C22, C23, C24 |
| 11 | TestPoint | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11 |
| 5 | 1uF | Capacitor_SMD:C_0603_1608Metric | C4, C5, C14, C15, C21 |
| 3 | JLCToolingHole1 | footprints:JLC_Assembly_Tooling_Hole | H3, H4, H5 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R6, R8 |
| 2 | 20pF | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C12, C20 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | 33 | Resistor_SMD:R_0402_1005Metric | R19, R20 |
| 2 | 4k7 | Resistor_SMD:R_0603_1608Metric | R15, R17 |
| 2 | MountingHole | MountingHole:MountingHole_2.5mm | H1, H2 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C19 |
| 1 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | BME280 | Package_LGA:Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U7 |
| 1 | Battery Connector | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | DNF | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | DebugHeader | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J3 |
| 1 | FM-B2020RGBA-HG | fm-b2020rgba-hg:FM-B2020RGBA-HG | D6 |
| 1 | LIS2HH12TR | footprints:LGA-12_2X2X1_STM | U5 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U3 |
| 1 | Recovery | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | SS14 | Diode_SMD:D_SMA | D5 |
| 1 | TS-1187A-B-A-B | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW2 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-AB_Molex_47590-0001 | J5 |
| 1 | W25Q128JVSIQ | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U1 |
It measures 61.1 × 20 mm and has 4 copper layers, 1.6 mm thick.
66 parts, built around the SC0914(13), BME280, W25Q128JVSIQ and AMS1117-3.3. 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 UC-Aerospace/hotstone repository on GitHub, at the commit this page was made from: the board is Hotstone.kicad_pcb and its schematic Hotstone.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 UC-Aerospace before reusing the design.
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