EPS Scales RevA
About the EPS Scales RevA PCB
EPS Scales RevA is an open source PCB design by BroncoSpace-Lab, published on GitHub. It is a 2-layer board, with 157 components from 23 distinct parts.
Other key parts include the TLV1704AQPWRQ1, LM73100RPWR and PI3740-00-LGIZ. By type, the board carries 78 resistors, 45 capacitors, 9 ICs, 9 diodes, 7 connectors and 6 jumpers.
It belongs with the sensors designs in this gallery.
From the project
Hardware design files for the Spacecraft Compartmentalized Autonomous Learning and Edge Computing System (SCALES)
This is the third board of the SCALES EPS. It is based on the RevF schematic which yields the Viking 1-C Board. This board improves on the success of the 1-B board and implements some minor improvements that prevented the Peripheral and Jetson subsystem from activating correctly.
List of Changes in Viking 1-C After Production Errors in Viking 1-B
- Removed R48 - Removed R83 - The above mentioned resistors caused too low of a voltage to fully enable the En pins on the load switches, and by simply removing them we can successfully drive the load switches on using GPIO pins. - Added 3 MCP9808…
Main components on the EPS Scales RevA
EPS Scales RevA bill of materials (BOM)
157 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | TLV1704AQPWRQ1 TLV1704 | TSSOP-14_4.4x5mm_P0.65mm | U1, U2, U3 |
| 3 | LM73100RPWR | RPW0010A-MFG | U4, U5, U6 |
| 3 | PI3740-00-LGIZ | LGA108S100P10X14_1000X1400X263N | U7, U8, U9 |
| 1 | Input Power | J1 | |
| 3 | Breakout | PinHeader_1x04_P2.54mm_Vertical | J2, J4, J6 |
| 3 | Breakout | JST_BM04B-SRSS-TB(LF)(SN) | J3, J5, J7 |
| 6 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6 |
| 6 | 1N4151WS-E3-08 1N4151WS | D_SOD-323 | D1, D3, D4, D6, D7, D9 |
| 3 | 150060GS75000 GREEN | LED_0603_1608Metric | D2, D5, D8 |
| 3 | L | L1, L2, L3 | |
| 9 | TCN4227M025R0100 220u | CP_EIA-7361-38_AVX-V | C1, C2, C3, C9, C10, C11, C17, C18 +1 |
| 15 | GRT188R61C106KE13D 10u | C_0603_1608Metric | C4, C5, C6, C7, C8, C12, C13, C14 +7 |
| 9 | C | C25, C26, C30, C31, C35, C36, C40, C41 +1 | |
| 3 | 4700pF | C27, C32, C37 | |
| 6 | 56pF | C28, C29, C33, C34, C38, C39 | |
| 3 | C_Polarized_US | C43, C44, C45 | |
| 3 | ESR18EZPF10R0 10 (1206) | R_1206_3216Metric | R1, R19, R37 |
| 15 | RMCF0603FT10K0 10k | R_0603_1608Metric | R2, R3, R4, R8, R9, R20, R21, R22 +7 |
| 9 | RMCF0603FT3K00 3.0k | R_0603_1608Metric | R5, R6, R7, R23, R24, R25, R41, R42 +1 |
| 6 | RMCF0603FT1K00 1k | R_0603_1608Metric | R10, R12, R28, R30, R46, R48 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 18 | RMCF0603FT100K 100k | R_0603_1608Metric | R11, R13, R14, R15, R17, R18, R29, R31 +10 |
| 3 | RMCF0603FT4M70 4.7M | R_0603_1608Metric | R16, R34, R52 |
| 24 | R | R55, R56, R57, R58, R59, R60, R61, R62 +16 |
EPS Scales RevA design files
The KiCad project lives in the BroncoSpace-Lab/scales-hardware repository on GitHub; these links point at the commit this page was built from.
EPS Scales RevA: common questions
How big is the EPS Scales RevA PCB?
The EPS Scales RevA has 2 copper layers and is 1.6 mm thick.
How many components are on the EPS Scales RevA?
157 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the EPS Scales RevA design files?
From the BroncoSpace-Lab/scales-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EPS Scales RevA design in my own project?
The repository has no license, so all rights stay with BroncoSpace-Lab. Use it as a reference, and ask the author before reusing the design.
More boards in scales-hardware
SCALES Leviathan V2
100 × 100 mm415 parts6LNo license6
Mariner 1-A
100 × 100 mm235 parts6LNo license6
EPS Scales RevE
100 × 100 mm197 parts4LNo license6
EPS Scales RevD
100 × 100 mm197 parts4LNo license6
EPS Scales RevE GECKOS
100 × 100 mm197 parts4LNo license6
EPS Scales RevC
95.2 × 66 mm194 parts4LNo license6
EPS Scales RevG
100 × 100 mm176 parts4LNo license6
RP2040/RP2350Peripheral board v1a
100.2 × 100.1 mm171 parts6LNo license6- schematic only · 157 parts
EPS Scales RevB
157 parts2LNo license6 
Periph ethernet switch
110.3 × 100.2 mm125 parts6LNo license6
RTW production pathfinder V1
56 × 51 mm95 parts2LNo license6
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