2 layers89.2 × 82.6 mm
Desktop 50 Pin TopConn
BlueSCSI/BlueSCSI-v2
BlueSCSI v2/Ultra - an open source, open hardware, SCSI emulator using the Pi Pico PR2040 and Pico 2 RP2350
108 parts459GPL-3.0
2 layers
BioimpedanceScale OF2
rjrobsonjunior/BioimpedanceScale_OF22- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 50
- Pads
- 85
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 Sep 2024
- Updated
- 19 Feb 2025
Overview
BioimpedanceScale OF2 is an open-source printed circuit board by rjrobsonjunior, from the rjrobsonjunior/BioimpedanceScale_OF2 repository on GitHub. It is a 2-layer board with 12 parts on 50 nets.
It is built around the TL081 and AMS1117-2.85. Its parts include 4 resistors and 3 ICs. It belongs with the ESP32 boards of this library.
Main components
2
TL081
SOP-8-18V~18V -20℃~+85℃ 1 1.8mA 100pA 200nA 20V/us 3MHz 3mV 85dB Built-in compensation SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
AMS1117-2.85
SOT-223-40℃~+125℃@(Tj) 0.003%Vout 1 1.3V@(1A) 12V 1A 2.85V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdBioimpedanceScale_OF2
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 20kR | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1(TD)1, R2(TD)1 |
| 2 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1_OpAmp1, R2_OpAmp1 |
| 1 | 500R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | RFB1 |
| 1 | AD5933 | AD5933:SOP65P780X200-16N | U1 |
| 1 | AMS1117-2.85 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | ESP32-DEVKITC-32D | ESP32-DEVKITC-32D:MODULE_ESP32-DEVKITC-32D | 500R1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type011_RT05502HBWC_1x02_P5.00mm_Horizontal | Eletrodes1 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_4Ucon:TerminalBlock_4Ucon_1x03_P3.50mm_Vertical | Charging1 |
| 1 | Screw_Terminal_01x04 | TerminalBlock:TerminalBlock_Xinya_XY308-2.54-4P_1x04_P2.54mm_Horizontal | Scale1 |
| 1 | TL081 | Package_DIP:DIP-8_W7.62mm | U9 |
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Questions
What parts does the BioimpedanceScale OF2 use?
12 parts, built around the TL081 and AMS1117-2.85. 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 BioimpedanceScale OF2 KiCad files?
From the rjrobsonjunior/BioimpedanceScale_OF2 repository on GitHub, at the commit this page was made from: the board is board/board/board.kicad_pcb and its schematic board/board/board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BioimpedanceScale OF2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask rjrobsonjunior before reusing the design.