Excite
About the Excite PCB
Excite is an open source PCB design by HarveyBates, published on GitHub. It is a 2-layer board measuring 40.9 × 45.1 mm, with 20 components from 18 distinct parts.
Other key parts include the KA7812ETU and 163-179PH-EX. By type, the board carries 6 capacitors, 3 ICs, 3 connectors, 3 resistors, 1 transistor and 1 fuse.
From the project
An open-source Arduino based chlorophyll fluorometer for quantifying photosynthesis in photosynthetic organisms.
Open-JIP is an open-source chlorophyll a fluorometer used to quantify photosynthetic phenotypes in terrestrial plants and microalgae. It is controlled via a Teensy microcontroller and features highly customisable electrical components and a 3D-printed infrastructure.
Open-JIP utilises a technique known as the fast polyphasic rise fluorescence (also known as OJIP). Steady irradiance is provided from an emitting LED, this excites photosynthetic antenna in the sample resulting in excess irradiance being emitted as photons of a longer wavelength (i.e. fluorescence). The emitted fluorescence…
Main components on the Excite
Excite bill of materials (BOM)
20 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | KA7812ETU AP63203WU-7 FAIRCHILD | AP63205WU-7 | U1 |
| 1 | 163-179PH-EX MIC29150-12WU-TR | MIC29150-12WU | U2 |
| 1 | ~ | 10W_COB | U3 |
| 1 | IRLZ44NPBF DMP6023LE-13 IR | DMP6023LE-13 | Q1 |
| 1 | Conn_02x06_Counter_Clockwise | PinHeader_2x06_P2.54mm_Vertical | J1 |
| 1 | TBP02R2-381-02BE | TBP02R2-381-02BE | J2 |
| 1 | PJ-002A | PJ-002A | J3 |
| 1 | BD681 | BD681 | CR1 |
| 1 | (10 A) | 0154010.DRL | F1 |
| 1 | BPW34R D_Zener | MMSZ4700T1G | D1 |
| 1 | 3.9uH | SDE0604A-3R9M | L1 |
| 1 | 10uF | C_0805_2012Metric | C1 |
| 1 | 1UF 100nF | C_0805_2012Metric | C2 |
| 1 | 0.1UF 22uF | C_0805_2012Metric | C3 |
| 1 | 22uF | C_0805_2012Metric | C4 |
| 2 | 10uF | CP_EIA-7343-15_Kemet-W | C5, C6 |
| 2 | 10K | R_0805_2012Metric | R1, R3 |
| 1 | 470OHM 10K | R_0805_2012Metric | R2 |
Excite design files
The KiCad project lives in the HarveyBates/Open-JIP repository on GitHub; these links point at the commit this page was built from.
Excite: common questions
How big is the Excite PCB?
The Excite measures 40.9 × 45.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Excite?
20 components, from 18 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 Excite design files?
From the HarveyBates/Open-JIP repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Excite design in my own project?
The repository has no license, so all rights stay with HarveyBates. Use it as a reference, and ask the author before reusing the design.
