
TDR 5351 core
MR-DOS/TDR_diploma_thesis
Time domain reflectometer. Includes Hardware, firmware and GUI in Octave. Also a diploma thesis.

Gmcontrol is an open-source printed circuit board by wrieden, from the wrieden/gmcontrol repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 40 × 25 mm with 145 parts on 85 nets, routed with 1,546 tracks and 297 vias.
It is built around the HT7333-1, BC817 and BC807, with the AO3401, BSS138 and BSS84 among its other parts. Its parts include 43 resistors, 36 transistors, 30 capacitors, 25 connectors and 4 diodes. It belongs with the STM32 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | BC817 | _Generic:SOT-23_Small | Q1, Q2, Q3, Q5, Q10, Q11, Q13, Q17, Q18, Q19, Q21, Q25, Q26, Q27, Q29, Q34 +1 |
| 17 | Conn_01x01 | _Generic:1.27Pad | J11, J12, J13, J14, J15, J16, J17, J18, J19, J20, J21, J22, J23, J24, J25, J26 +1 |
| 16 | 470 | _Generic:0603_Small | R1, R2, R3, R5, R11, R12, R13, R15, R18, R19, R20, R22, R25, R26, R27, R29 |
| 12 | 22u | _Generic:0805_Small | C17, C18, C19, C21, C22, C23, C25, C26, C27, C28, C29, C30 |
| 8 | 10k | _Generic:0603_Small | R6, R16, R23, R30, R34, R39, R41, R42 |
| 8 | 1k | _Generic:0603_Small | R7, R17, R24, R31, R35, R38, R40, R43 |
| 8 | 1u | _Generic:0603_Small | C1, C2, C11, C12, C13, C14, C15, C16 |
| 8 | AON7212 | _Generic:DFN3x3A_8L_EP1_P | Q7, Q8, Q15, Q16, Q23, Q24, Q31, Q32 |
| 8 | BC807 | _Generic:SOT-23_Small | Q4, Q6, Q12, Q14, Q20, Q22, Q28, Q30 |
| 6 | Conn_01x01 | _Generic:2.54Pad | J5, J6, J7, J8, J9, J10 |
| 5 | 100n | _Generic:0603_Small | C5, C6, C7, C8, C20 |
| 4 | 100 | _Generic:0603_Small | R4, R14, R21, R28 |
| 3 | 220 | _Generic:0603_Small | R32, R33, R36 |
| 2 | 100u | gmcontrol:CD32 | L1, L2 |
| 2 | 10p | _Generic:0603_Small | C3, C4 |
| 2 | 18V | Diode_SMD:D_SOD-323 | D3, D4 |
| 2 | 1N5819 | Diode_SMD:D_SOD-323 | D1, D2 |
| 2 | 22R | _Generic:0603_Small | R8, R9 |
| 2 | 47p | _Generic:0603_Small | C9, C10 |
| 2 | Mounting_Hole_PAD | MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad | MK1, MK2 |
| 1 | 1.5k | _Generic:0603_Small | R10 |
| 1 | 16Mhz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 22k | _Generic:0603_Small | R37 |
| 1 | 22u | _Generic:0603_Small | C24 |
| 1 | AO3401 | _Generic:SOT-23_Small | Q36 |
| 1 | BSS138 | _Generic:SOT-23_Small | Q33 |
| 1 | BSS84 | _Generic:SOT-23_Small | Q35 |
| 1 | HT7333-1 | Package_TO_SOT_SMD:SOT-89-3 | U2 |
| 1 | Jack-DC | gmcontrol:BarrelJack_Horizontal_modified | J2 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | USB_OTG | gmcontrol:USB_Micro-B | J1 |
It measures 40 × 25 mm and has 2 copper layers, 1.6 mm thick.
145 parts, built around the HT7333-1, BC817, BC807 and AO3401. 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 wrieden/gmcontrol repository on GitHub, at the commit this page was made from: the board is hardware/gmcontrol.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

MR-DOS/TDR_diploma_thesis
Time domain reflectometer. Includes Hardware, firmware and GUI in Octave. Also a diploma thesis.

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