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5 to 28v

Sussex-Neuroscience·med-associates-bits·hardware/electronics/5_to_28v/5_to_28v.kicad_pcb

5 to 28v PCB layout, top view — open source AVR/Arduino board by Sussex-Neuroscience

About the 5 to 28v PCB

5 to 28v is an open source AVR/Arduino PCB design by Sussex-Neuroscience, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 462.3 × 270.5 mm, with 71 components from 36 distinct parts.

Its main chip is the Arduino_Nano_v3.x, from the AVR/Arduino family. Other key parts include the LM2596S-12 and LTV-847M. By type, the board carries 33 resistors, 17 connectors, 4 ICs, 4 diodes, 3 transistors and 3 jumpers.

From the project

A behavioural box for rodents based on microcontrollers and printed parts

Med Associates sells a number of tools for behavioural systems. This commercial system is a complete solution for behavioural experiments, and can be used to run multiple behavioural boxes in parallel. It is unfortunately rather expensive and closed source, so users are almost always dependent on MedAssociates for upgrades and customization (and whenever something breaks). Another downside is that an unusual 28V system is employed, so adding/customizing things has an extra layer of complexity.

Main components on the 5 to 28v

LM2596S-12LTV-847MArduino_Nano_v3.x

5 to 28v bill of materials (BOM)

71 components, 36 distinct parts.

QtyPartRefs
1
LM2596S-12
U1
3
LTV-847M
U2, U3, U4
1
Arduino_Nano_v3.x
A1
2
headentry_sensor
Q1, Q3
1
lickspout_sensor
Q2
1
from_med_assoc_power
J1
1
optional_power_to_arduino_system
J2
1
to_external_device1
J3
1
generic_analog_dev3
J4
1
to_external_device2
J5
1
to_external_device3
J6
1
from_external_device1
J7
1
from_external_device2
J8
1
from_external_device3
J9
1
generic_analog_dev1
J10
1
generic_analog_dev2
J11
3
med_associates_output1
J12, J13, J14
1
med_associates_input2
J15
1
med_associates_input3
J16
1
med_associates_input1
J17
Show 16 more
QtyPartRefs
3
Jumper_NC_Dual
JP1, JP2, JP3
1
analog3_sensitivity
RV1
1
analog1_sensitivity
RV2
1
analog2_sensitivity
RV3
1
D_Schottky
D1
3
LED
D2, D3, D4
1
33µH
L1
1
680µF 40V
C1
1
220 µF 12V
C2
16
1.5k 1W
R1, R3, R4, R5, R6, R7, R16, R17 +8
3
10k
R2, R14, R15
6
1k
R8, R9, R10, R11, R12, R13
3
220
R19, R20, R21
1
1.5K
R25
3
5k
R26, R28, R30
1
3k
R29

5 to 28v design files

The KiCad project lives in the Sussex-Neuroscience/med-associates-bits repository on GitHub; these links point at the commit this page was built from.

5 to 28v: common questions

What microcontroller does the 5 to 28v use?

The 5 to 28v is built around the Arduino_Nano_v3.x, from the AVR/Arduino family.

How big is the 5 to 28v PCB?

The 5 to 28v measures 462.3 × 270.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 5 to 28v?

71 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the 5 to 28v design files?

From the Sussex-Neuroscience/med-associates-bits repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the 5 to 28v design in my own project?

Yes, under the terms of its GPL-3.0 license, which Sussex-Neuroscience chose for the repository.

Can I test firmware for the 5 to 28v without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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