Elec-327-pico balloon project
About the Elec-327-pico balloon project PCB
Elec-327-pico balloon project is an open source PCB design by justinsso, published on GitHub. It is a 2-layer board measuring 30.6 × 35 mm, with 56 components from 37 distinct parts.
Other key parts include the TPS7A0333PDBVR, TPS7A0518PDBV, BME280, LTR-390UV and ATGM336H. By type, the board carries 17 capacitors, 14 resistors, 6 ICs, 6 connectors, 3 transistors and 3 crystals.
From the project
ELEC 327
Note: project was built with CCS 20.4.1.
Course: ELEC 327 — Digital Systems Laboratory, Rice University, Spring 2026 (Instructor: Caleb Kemere). Final project assignment.
Main components on the Elec-327-pico balloon project
Elec-327-pico balloon project bill of materials (BOM)
56 components, 37 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS7A0333PDBVR | SOT-23-5 | U1 |
| 1 | TPS7A0518PDBV | SOT-23-5 | U2 |
| 1 | BME280 | Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U4 |
| 1 | LTR-390UV | Lite-On_LTR-303ALS-01 | U5 |
| 1 | ATGM336H | ublox_MAX | U6 |
| 1 | MSPM0G3507SRHBR | QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U7 |
| 2 | SSM6P35AFE | SOT-563 | Q1, Q3 |
| 1 | DMG2302U | SOT-23 | Q2 |
| 1 | FT5HV | Oscillator_SMD_SeikoEpson_TG2520SMN-xxx-xxxxxx-4Pin_2.5x2.0mm | Y1 |
| 1 | Si5351A-B-GT | MSOP-10_3x3mm_P0.5mm | Y2 |
| 1 | 32.768k | Crystal_SMD_EuroQuartz_EQ161-2Pin_3.2x1.5mm | Y3 |
| 1 | Solar+ | PinHeader_1x01_P2.54mm_Vertical | J1 |
| 1 | Solar- | PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | Wire antenna | PinHeader_1x01_P2.54mm_Vertical | J3 |
| 1 | Dipole side 2 | PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | Dipole side 1 | PinHeader_1x01_P2.54mm_Vertical | J5 |
| 1 | Conn_01x07 | PinHeader_1x07_P2.54mm_Vertical | J6 |
| 1 | Supercap_conn | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | Jumper_2_Open | PinHeader_1x02_P1.00mm_Vertical | JP2 |
| 1 | SW_Push | SW_SPST_PTS810 | SW1 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NSR0340HT1G | D_SOD-323 | D1 |
| 1 | 1N5819HWQ-7-F | D_SOD-123 | D2 |
| 1 | LED | LED_0603_1608Metric | D4 |
| 1 | 10u | AOTA-B252010 | L1 |
| 10 | 1u | C_0402_1005Metric | C1, C4, C6, C7, C9, C10, C11, C12 +2 |
| 2 | 10u | C_0603_1608Metric | C2, C5 |
| 1 | 5F | ADCM-S05R5SA505RB | C3 |
| 1 | 0.47 uF | C_0603_1608Metric | C19 |
| 1 | 1.5n | C_0603_1608Metric | C20 |
| 2 | 4p | C_0603_1608Metric | C21, C22 |
| 1 | 6.8M | R_0603_1608Metric | R1 |
| 1 | 4.7M | R_0603_1608Metric | R2 |
| 1 | 100 | R_0603_1608Metric | R3 |
| 7 | 330k | R_0402_1005Metric | R4, R5, R6, R7, R9, R10, R15 |
| 1 | 33 | R_2512_6332Metric | R8 |
| 2 | 100k | R_0402_1005Metric | R11, R12 |
| 1 | 1k | R_0603_1608Metric | R17 |
Elec-327-pico balloon project design files
The KiCad project lives in the justinsso/elec-327-pico-balloon-project repository on GitHub; these links point at the commit this page was built from.
Elec-327-pico balloon project: common questions
How big is the Elec-327-pico balloon project PCB?
The Elec-327-pico balloon project measures 30.6 × 35 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Elec-327-pico balloon project?
56 components, from 37 distinct parts. The full bill of materials is listed on this page.
Where can I download the Elec-327-pico balloon project design files?
From the justinsso/elec-327-pico-balloon-project repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Elec-327-pico balloon project design in my own project?
The repository has no license, so all rights stay with justinsso. Use it as a reference, and ask the author before reusing the design.