2 layers95 × 55 mm
2 layers95 × 55 mm
Logic probe
sjm42/electronicsVarious electronics projects
- Size
- 95 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 101
- Nets
- 72
- Pads
- 338
- Tracks, vias
- 28, 0
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 13 Mar 2018
- Updated
- 16 Aug 2024
Overview
Logic probe is an open-source printed circuit board by sjm42, from the sjm42/electronics repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 95 × 55 mm with 101 parts on 72 nets, routed with 28 tracks and 0 vias.
It is built around the LM339 and 2N2222A. Its parts include 32 diodes, 27 resistors, 11 capacitors, 8 transistors and 7 ICs. It belongs with the sensors and measurement boards of this library.
Main components
2README
README.mdElectronics
My various electronics projects
Parts
101| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 1N4148 | Diodes_ThroughHole:D_DO-35_SOD27_P7.62mm_Horizontal | D0/1, D0/2, D0/3, D1/1, D1/2, D1/3, D2/1, D2/2, D2/3, D3/1, D3/2, D3/3, D4/1, D4/2, D4/3, D5/1 +8 |
| 8 | 100 | Resistors_SMD:R_1206_HandSoldering | R0/3, R1/3, R2/3, R3/3, R4/3, R5/3, R6/3, R7/3 |
| 8 | 2N2222A | TO_SOT_Packages_THT:TO-92_Inline_Narrow_Oval | Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7 |
| 8 | 470 | Resistors_SMD:R_1206_HandSoldering | R0/1, R1.1, R2/1, R3/1, R4/1, R5/1, R6/1, R7/1 |
| 8 | 47k | Resistors_SMD:R_1206_HandSoldering | R0/2, R1/2, R2/2, R3/2, R4/2, R5/2, R6/2, R7/2 |
| 8 | LED_RAGB | LED:LED-RGB-THRU | LED0, LED1, LED2, LED3, LED4, LED5, LED6, LED7 |
| 7 | 1u | Capacitors_ThroughHole:C_Disc_D6.0mm_W2.5mm_P5.00mm | C3, C5, C7, C8, C9, C10, C11 |
| 4 | 220k | Resistors_SMD:R_Array_Concave_4x0603 | RN1, RN2, RN3, RN4 |
| 4 | LM339 | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U4, U5, U6, U7 |
| 4 | MountingHole | Mounting_Holes:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 4.7u | Capacitors_ThroughHole:C_Disc_D6.0mm_W2.5mm_P5.00mm | C2, C4, C6 |
| 3 | Jumper | w_pin_strip:pin_strip_2 | JP1, JP2, JP3 |
| 2 | 7.5k | Resistors_SMD:R_1206_HandSoldering | R1, R3 |
| 2 | Conn_01x02_Male | w_pin_strip:pin_strip_2 | J1, J4 |
| 1 | 10k | Resistors_SMD:R_1206_HandSoldering | R2 |
| 1 | 10u | Capacitors_ThroughHole:C_Disc_D6.0mm_W2.5mm_P5.00mm | C1 |
| 1 | Conn_01x10_Male | w_pin_strip:pin_strip_10 | J3 |
| 1 | L78L05_TO92 | TO_SOT_Packages_THT:TO-92_Inline_Wide | U1 |
| 1 | L78L10_TO92 | TO_SOT_Packages_THT:TO-92_Inline_Wide | U2 |
| 1 | L78L15_TO92 | TO_SOT_Packages_THT:TO-92_Inline_Wide | U3 |
| 1 | Screw_Terminal_01x02 | w_conn_screw:mors_2p | J5 |
| 1 | dc_jack | Connect:BARREL_JACK | J2 |
Questions
How big is the Logic probe PCB?
It measures 95 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Logic probe use?
101 parts, built around the LM339 and 2N2222A. 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.
Where can I download the Logic probe KiCad files?
From the sjm42/electronics repository on GitHub, at the commit this page was made from: the board is logic-probe/foo/logic-probe.kicad_pcb and its schematic blink-timer/blink-timer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Logic probe design in my own project?
Its repository publishes it under the Apache-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).
More from sjm42/electronics
6- 4 layers95.6 × 55.6 mm
- 2 layers101.6 × 61 mm
- 2 layers81 × 46 mm
- 2 layers50 × 50 mm
- 2 layers44 × 21 mm
Similar boards
- 2 layers101.5 × 83 mm
- 2 layers279.4 × 203.2 mm
Z180GDC
lynchaj/rhyophyre
Single Board Computer featuring Zilog Z180 processor and NEC µPD7220 Graphics Display Controller
249 parts12 - 2 layers99.1 × 99.1 mm
QL Qsound10x10
alvaroalea/QL_QsoundQprint_clone
A clone board of the Sound card for the Sinclair QL Computer.
23 parts11 - 2 layers156.5 × 67.5 mm
NixieScanDisplay
profdc9/NixieClock
A Nixie clock that uses IN-14 tubes and very generic components that can be easily sourced.
106 parts10 - 2 layers89.3 × 50 mm
MM58167-ISA RTC
jensma-de/MM58167-ISA-RTC
RTC module for the ISA slot. With schematics, project files in kicad and open source software to drive the clock.
29 parts9 - 2 layers97.6 × 76.8 mm
- 2 layers14.6 × 13.6 mm
Chip and transistor
gidim/e61-gauge
An analog temperature gauge for E61 espresso machines. A custom PCB drives a VID6606 stepper motor gauge needle, reading temperature from an NTC thermistor.
15 parts8 - 2 layers147.2 × 58.3 mm
Li IonBatteryProtection
cnobile2012/Li-IonBatteryProtection
Circuit to protect Li-Ion and Li-Po batteries at the cell level.
81 parts6MIT