Odour stimulator
Sussex-Neuroscience·odour-stimulator·hardware/electronics/spike_n_hold/spike_n_hold.kicad_pcb
About the Odour stimulator PCB
Odour stimulator is an open source PCB design by Sussex-Neuroscience, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 63 × 110.5 mm, with 50 components from 25 distinct parts.
Other key parts include the LM555XM and LM2596T-12. By type, the board carries 16 resistors, 9 diodes, 8 transistors, 8 capacitors, 5 connectors and 3 ICs.
From the project
A system to present odour to flies
The image below is taken from https://academic.oup.com/chemse/article/42/2/141/2709444
- developed as part of the work of the Nowotny lab and it is being setup initially for experiments with flies. - The reason we are publicly documenting things is that since the original papers describing the stimulator came out, some enabling technology has become widely available, which makes setting this up simpler and less expensive. This write up is our attempt to document this. - Some documentation of the orignal stimulator is already publicly available on github already, unfortunately some of the…

Main components on the Odour stimulator
Odour stimulator bill of materials (BOM)
50 components, 25 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | LM555XM LM555xM | DIP-8_W7.62mm_LongPads | U1, U2 |
| 1 | LM2596T-12 LM2596T-ADJ | TO-220-5_P3.4x3.7mm_StaggerOdd_Lead3.8mm_Vertical | U5 |
| 2 | MJH11021G | TO-247-3_Vertical | Q1, Q2 |
| 4 | MPSA42 | TO-92L_Inline_Wide | Q3, Q4, Q5, Q6 |
| 2 | MJH11022G | TO-247-3_Vertical | Q7, Q8 |
| 1 | INPUT_TRIGGER_2 input_trigger_2 | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | INPUT_TRIGGER_1 input_trigger_1 | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | TO_SOLENOID_2 to_solenoid_2 | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | TO_SOLENOID_1 to_solenoid_1 | PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | Barrel_Jack_MountingPin | Barrel_Jack_5.5mmODx2.1mmID_PJ-202A | J9 |
| 6 | 1N4005 | D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 2 | 1N47XXA 1N47xxA | D_DO-41_SOD81_P10.16mm_Horizontal | D7, D8 |
| 1 | 1N5820 | D_DO-201AD_P15.24mm_Horizontal | D17 |
| 1 | 33µH | L_Radial_D7.5mm_P3.50mm_Fastron_07P | L1 |
| 2 | 680PF 680pF | C_Disc_D5.1mm_W3.2mm_P5.00mm | C1, C2 |
| 2 | 10NF 10nF | C_Disc_D5.1mm_W3.2mm_P5.00mm | C3, C4 |
| 2 | 10µF | C_Disc_D5.1mm_W3.2mm_P5.00mm | C5, C6 |
| 1 | 680µF | CP_Radial_D10.0mm_P5.00mm | C11 |
| 1 | 220µF | CP_Radial_D10.0mm_P5.00mm | C15 |
| 4 | 10K 10k | R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R1, R2, R9, R10 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 4.7K 4.7k | R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R3, R4 |
| 6 | 330 | R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R5, R6, R7, R8, R11, R12 |
| 2 | 2k | R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R13, R14 |
| 1 | 10K 1k | R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R15 |
| 1 | 4.7K 9.1k | R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R16 |
Odour stimulator design files
The KiCad project lives in the Sussex-Neuroscience/odour-stimulator repository on GitHub; these links point at the commit this page was built from.
Odour stimulator: common questions
How big is the Odour stimulator PCB?
The Odour stimulator measures 63 × 110.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Odour stimulator?
50 components, from 25 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Odour stimulator design files?
From the Sussex-Neuroscience/odour-stimulator repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Odour stimulator design in my own project?
Yes, under the terms of its GPL-3.0 license, which Sussex-Neuroscience chose for the repository.