
Netdroid
dzianisv/netdroid
University project: firmware for the STM32F103 based robot control-board

Crystal is an open-source printed circuit board by Kreyl, from the Kreyl/Crystal repository on GitHub. It is a 2-layer board of 38.5 × 0.1 mm with 72 parts on 67 nets, routed with 1,246 tracks and 314 vias.
It is built around the STM32F100C4T6B, CC1101RGP and BLM15AG102SN1. Its parts include 22 capacitors, 18 resistors, 5 transistors, 3 switches and 3 inductors. It belongs with the STM32 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 1k | Resistors:RES_0603 | R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15 |
| 11 | 0.1u | Capacitors:CAP_0603_Silks | C6, C8, C9, C10, C11, C12, C13, C15, C16, C17, C18 |
| 4 | 1u | Capacitors:CAP_0603_Silks | C7, C19, C21, C22 |
| 4 | LED_5050 | LEDs:LED_5050 | Q1, Q2, Q3, Q4 |
| 4 | REFPOINT | PCB:REF_POINT_1MM | RP1, RP2, RP3, RP4 |
| 3 | 100k | Resistors:RES_0603 | R16, R17, R18 |
| 3 | HOLE_METALLED | PCB:Hole2d4_out4d4mm | HOLE1, HOLE2, HOLE3 |
| 3 | IT1198 | BtnsSwitches:BTN_IT1198 | SW1, SW2, SW3 |
| 3 | TESTPOINT | PCB:TESTPOINT_1MM | TP1, TP2, TP3 |
| 2 | * | Capacitors:CAP_0402 | C2, C3 |
| 2 | 18pF | Capacitors:CAP_0603_Silks | C4, C5 |
| 2 | 56k | Resistors:RES_0603 | R1, R3 |
| 2 | BLM15AG102SN1 | Inductors:IND_0402 | L2, L3 |
| 1 | * | Inductors:IND_0402 | L1 |
| 1 | 100pF | Capacitors:CAP_0402 | C1 |
| 1 | 10k | Resistors:RES_0603 | R2 |
| 1 | 10n | Capacitors:CAP_0603_Silks | C20 |
| 1 | 10u | Capacitors:CAP_0603_Silks | C14 |
| 1 | 27MHz | Quartz:03225C4 | XTAL1 |
| 1 | 2N7002 | SOT:SOT23-3 | Q5 |
| 1 | ANT_PCB_MONO_2PIN | Antennas:Locket5_MIRR | ANT1 |
| 1 | BALUN868JOHANSON | Radio:BALUN_JOHANSON868 | BLN1 |
| 1 | CC1101 | QFN_DFN:QFN20 | DD1 |
| 1 | CONN_1 | Connectors:PLS-1Square | XL2 |
| 1 | CONN_2 | Connectors:SLD_2_2D5 | XL3 |
| 1 | CONN_6 | Connectors:PLS-6_LOCK | XL1 |
| 1 | Logo | Pictures:Ostranna_16d9_13d5 | Logo1 |
| 1 | MCP1700 | SOT:SOT23-3A | DA1 |
| 1 | SS9 | BtnsSwitches:SW_SS9 | SA1 |
| 1 | STM32F100C4 | LQFP_TQFP:LQFP48 | DD2 |
It measures 38.5 × 0.1 mm and has 2 copper layers, 1.46 mm thick.
72 parts, built around the STM32F100C4T6B, CC1101RGP and BLM15AG102SN1. 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 Kreyl/Crystal repository on GitHub, at the commit this page was made from: the board is Crystal_hw/Crystal.kicad_pcb and its schematic Crystal_hw/Crystal.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 Kreyl before reusing the design.

dzianisv/netdroid
University project: firmware for the STM32F103 based robot control-board

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