2 layers31.5 × 24.5 mm
2 layers104.5 × 57.5 mm
Float-2026
slvusd/projects1Shared projects
- Size
- 104.5 × 57.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 56
- Pads
- 163
- Tracks, vias
- 459, 80
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Nov 2024
- Updated
- 18 Mar 2026
Overview
Float-2026 is an open-source printed circuit board by slvusd, from the slvusd/projects repository on GitHub. It is a 2-layer board of 104.5 × 57.5 mm with 20 parts on 56 nets, routed with 459 tracks and 80 vias.
It is built around the ESP32-S2-WROVER-I(4M), BMP280 and LM2596S-3.3. Its parts include 5 ICs, 5 connectors, 4 capacitors, 4 resistors and 1 diode. It belongs with the ESP32 boards of this library.
Main components
3ESP32-S2-WROVER-I(4M)
18x31x3.3mm18x31x3.3mm WiFi Modules ROHSEspressif SystemsWiFi Modules
BMP280
LGA-8(2x2.5)-40℃~+85℃ 0.12hpa 1.5pa/K 1.71V~3.6V 1hpa 300nA 30Kpa~1.1bar I2C、SPI Integrated ADC and digital interface、On-chip calibration and non-volatile storage、Standby mode、On-chip temperature output LGA-8(2x2.5) Pressure Sensors ROHSBoschPressure Sensors
LM2596S-3.3
TO-263-5L-20℃~+70℃ 1 170kHz 2mA 3.3V 3A 4.5V~40V Buck Buck Built-in Fixed No TO-263-5L DC-DC Converters ROHSGRDC-DC Converters
README
README.mdProjects
The purpose of this repo is to sync teacher and student work to a repo so it can be shared and so it will not get lost.
To add a new computer to this repo, run these commands:
git config --global user.name slvusd-gitbot
git config --global user.email "ebrown+gitbot@slvusd.org"
git config --global credential.helper storeThen from pi's home directory, run
git -c credential.helper= clone https://github.com/slvusd/projects.git srcYou will be prompted for the username (slvusd-github) and password. Get the password (token) from Mr. Brown.
You need to run $HOME/src/git_sync.sh once from the
command line and enter the same credentials in order
to have the credentials cached for cron.
Finally, run crontab -e and add the following entry:
*/5 * * * * /home/pi/src/git_sync.shThat's it!
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | C | Capacitor_THT:C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C1, C2, C3, C4 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P1.90mm_Vertical | R1, R2 |
| 2 | R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P1.90mm_Vertical | R3, R4 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Ningbo-Kagnex:TerminalBlock_Ningbo-Kagnex_HB9500M_1x02_P9.5mm | J1, J2 |
| 1 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | BMP280 | Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering | U5 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.00mm:PinHeader_1x05_P2.00mm_Vertical | J5 |
| 1 | Conn_02x12_Counter_Clockwise | Connector_PinHeader_2.00mm:PinHeader_2x12_P2.00mm_Vertical | J4 |
| 1 | ESP32-S2-WROVER | RF_Module:ESP32-S2-WROVER | U2 |
| 1 | L | Inductor_THT:L_Axial_L5.0mm_D3.6mm_P10.00mm_Horizontal_Murata_BL01RN1A2A2 | L1 |
| 1 | LM2596S-3.3 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U3 |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Wuerth_693072010801 | J3 |
| 1 | SHT4x | Sensor_Humidity:Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | U4 |
| 1 | TB6612FNG | Package_SO:SSOP-24_5.3x8.2mm_P0.65mm | U1 |
Questions
How big is the Float-2026 PCB?
It measures 104.5 × 57.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Float-2026 use?
20 parts, built around the ESP32-S2-WROVER-I(4M), BMP280 and LM2596S-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Float-2026 KiCad files?
From the slvusd/projects repository on GitHub, at the commit this page was made from: the board is mason/Float-2026.kicad_pcb and its schematic mason/Float-2026.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Float-2026 design in my own project?
Its repository states no licence, so its author keeps all rights: ask slvusd before reusing the design.
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