Chloroplast
About the Chloroplast PCB
Chloroplast is an open source PCB design by badjeff, published on GitHub. It is a 2-layer board measuring 18 × 33 mm, with 27 components from 18 distinct parts.
Other key parts include the E73-2G4M08S1C, BQ25186DLHR, TPS7A0233PDBVR and TPMAX40200ANS_T. By type, the board carries 11 resistors, 6 capacitors, 4 ICs, 4 diodes and 1 inductor.
It belongs with the keyboards and power & battery designs in this gallery.
From the project
A pro micro form factor nRF52840 controller board
A nRF52840 controller with the Ebyte E73-2G4M08S1C module, TI BQ25186DLHR, and TI TPS7A0233PDBVR.
Online preview avaliable here, powered by KiCanvas.
- SMD 0402 (Imperial) aka 1005 Metric. - Alternative LED pads (D5,D6) are layouted on back.
- Copper layer count: 2 - Board thickness: 1.0 mm - Board overall dimensions: 18.0 x 33.02 mm
This board uses Adafruit Bootloader. The board folder could be found at here. Bootloader flashing is recommended to follow the comprehensive guide on joric/nrfmicro/wiki/Bootloader.
Main components on the Chloroplast
Chloroplast bill of materials (BOM)
27 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | E73-2G4M08S1C Chengdu Ebyte Elec Tech | E73-2G4M08S1C | U1 |
| 1 | BQ25186DLHR Texas Instruments | DFN-10_2x2mm_P0.4mm | U2 |
| 1 | TPS7A0233PDBVR Texas Instruments | SOT-23-5 | U3 |
| 1 | TPMAX40200ANS_T TECH PUBLIC | WLCSP-4_0.64x0.64mm_P0.35mm | U4 |
| 1 | TYPE-C-31-M-12 Korean Hroparts Elec | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USBC1 |
| 1 | GREEN | LED_0402_1005Metric | D1 |
| 1 | BLUE | LED_0402_1005Metric | D2 |
| 2 | NSR05F30NXT5G onsemi | NSR05F30NXT5G | D3, D4 |
| 1 | 10uH TDK | L_0603_1608Metric | L1 |
| 4 | 1uF | C_0402_1005Metric | C1, C2, C3, C4 |
| 2 | 10uF | C_0402_1005Metric | C5, C6 |
| 2 | 5K1 | R_0402_1005Metric | R1, R2 |
| 4 | 10K | R_0402_1005Metric | R3, R4, R5, R9 |
| 1 | 510K | R_0402_1005Metric | R6 |
| 1 | 4K7 | R_0402_1005Metric | R7 |
| 1 | 1M | R_0402_1005Metric | R8 |
| 1 | 820K | R_0402_1005Metric | R10 |
| 1 | 2M | R_0402_1005Metric | R11 |
Chloroplast design files
The KiCad project lives in the badjeff/chloroplast-pcb repository on GitHub; these links point at the commit this page was built from.
- Layoutchloroplast.kicad_pcb
- Schematicchloroplast.kicad_sch
Chloroplast: common questions
How big is the Chloroplast PCB?
The Chloroplast measures 18 × 33 mm, has 2 copper layers and is 1 mm thick.
How many components are on the Chloroplast?
27 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the Chloroplast design files?
From the badjeff/chloroplast-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Chloroplast design in my own project?
The repository has no license, so all rights stay with badjeff. Use it as a reference, and ask the author before reusing the design.
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