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
- 103
- Nets
- 74
- Pads
- 347
- Tracks, vias
- 566, 47
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- 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 103 parts on 74 nets, routed with 566 tracks and 47 vias.
It is built around the LM339, AMS1117-3.3 and L78L05CZ, with the L78L10ACU, L78L15ABU and 2N2222A among its other parts. Its parts include 32 diodes, 27 resistors, 11 capacitors, 8 ICs and 8 transistors. It belongs with the sensors and measurement boards of this library.
Main components
6
LM339
SOP-140℃~+70℃ 1.1mA 1.5mV 150ns 2.3nA 2V~32V 32V 57nA DTL、TTL、CMOS Four channels Open Collector SOP-14 Comparators ROHSJSMSEMIComparators
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
L78L05CZ
TO-920℃~+125℃ 100mA 30V 40uV 49dB@(120Hz) 5V Fixed Over Temperature Protection、Short Circuit Protection Positive TO-92 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsPower Management - Specialized
L78L10ACU
SOT-89-30℃~+125℃@(Tj) 1 1.7V@(40mA) 100mA 10V 23V 45dB@(120Hz) 60uV 6mA Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsL78L15ABU
SOT-89-3-40℃~+125℃@(Tj) 1 1.7V 100mA 15V 35V 39dB@(120Hz) 6.5mA 90uV Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators2N2222A
TO-92-55℃~+150℃ 1 NPN 100MHz 100nA 400 40V 5V 600mA 600mV 625mW NPN TO-92 Bipolar (BJT) ROHSSlkorBipolar (BJT)
README
README.mdElectronics
My various electronics projects
Parts
103| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 1N4148 | Diodes_ThroughHole:D_T-1_P5.08mm_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 | 1u | Capacitors_ThroughHole:C_Disc_D6.0mm_W2.5mm_P5.00mm | C3, C4, C5, C7, C8, C9, C10, C11 |
| 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 |
| 4 | 470k | 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 | Jumper | w_pin_strip:pin_strip_2 | JP1, JP2, JP3 |
| 2 | 4.7u | Capacitors_ThroughHole:C_Disc_D6.0mm_W2.5mm_P5.00mm | C2, C6 |
| 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 | AMS1117-3.3 | w_smd_trans:sot223 | U8 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J2 |
| 1 | Conn_01x05_Male | w_pin_strip:pin_strip_5 | JP4 |
| 1 | Conn_01x10_Male | w_pin_strip:pin_strip_10 | J3 |
| 1 | L78L05 | TO_SOT_Packages_THT:TO-92_Inline_Wide | U1 |
| 1 | L78L10 | TO_SOT_Packages_THT:TO-92_Inline_Wide | U2 |
| 1 | L78L15 | TO_SOT_Packages_THT:TO-92_Inline_Wide | U3 |
| 1 | Screw_Terminal_01x02 | w_conn_screw:mors_2p | J5 |
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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?
103 parts, built around the LM339, AMS1117-3.3, L78L05CZ and L78L10ACU. 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/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).