Input selector
About the Input selector PCB
Input selector is an open source PCB design by FutureSharks, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 90.2 × 52.1 mm, with 41 components from 13 distinct parts.
Other key parts include the ULN2003 and MCP23S17_SO. By type, the board carries 12 resistors, 6 relays, 5 capacitors, 3 ICs, 1 connector and 1 LED.
It belongs with the audio and displays & leds designs in this gallery.
From the project
An digitally controlled hi fi preamplifier 🔈🎵
6x inputs Mute for output SPI controlled using a MCP23S17 Latching relays for low current draw Compatible with 5V and 3V relays Uses high quality Panasonic relays * Stackable with RCA panel and MDAC attenuator
Python module is here: code/modules/input_selector.py
Main components on the Input selector
Input selector bill of materials (BOM)
41 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ULN2003 | SOIC-16_3.9x9.9mm_P1.27mm | U1, U3 |
| 1 | MCP23S17_SO | SOIC-28W_7.5x17.9mm_P1.27mm | U2 |
| 1 | Conn_01x06_Male | Molex_KK-254_AE-6410-06A_1x06_P2.54mm_Vertical | J1 |
| 2 | Conn_01x02_Male | Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | EXTRA_IO1, PWR1 |
| 9 | Conn_01x03_Male | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | IN1, IN2, IN3, IN4, IN5, IN6, MUTE_IN1, MUTE_OUT1 +1 |
| 6 | IM40 | g6j-2p-y | K1, K2, K3, K4, K5, K6 |
| 1 | IM01 | g6j-2p-y | MUTE1 |
| 1 | R | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | RLED1 |
| 1 | LED | LED_1206_3216Metric | LED1 |
| 1 | CP | CP_Elec_10x7.9 | C1_SMD1 |
| 1 | CP | CP_Radial_D10.0mm_P5.00mm | C1_TH1 |
| 3 | C | C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C2, C3, C4 |
| 12 | 47R | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 +4 |
Input selector design files
The KiCad project lives in the FutureSharks/preamp-two repository on GitHub; these links point at the commit this page was built from.
Input selector: common questions
How big is the Input selector PCB?
The Input selector measures 90.2 × 52.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Input selector?
41 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the Input selector design files?
From the FutureSharks/preamp-two repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Input selector design in my own project?
Yes, under the terms of its GPL-3.0 license, which FutureSharks chose for the repository.
More boards in preamp-two
Similar boards
LevelShifterBreakout
scottbez1
15.2 × 20.3 mm5 parts2LApache-2.022.2k
View base
81.2 × 81.2 mm81 parts2LApache-2.022.2k
View screen
35 × 35 mm12 parts2LApache-2.022.2k
BM28B0.6-24DSBreakout
15.2 × 35.6 mm3 parts2LApache-2.022.2k
ChainlinkDriverTester
198.1 × 95.3 mm123 parts2LApache-2.04.2k
ChainlinkBase
98.4 × 190.5 mm119 parts2LApache-2.04.2k