2 layers70 × 65 mm
Digital Voltmeter
tejasgolhar2/Digital-Voltmeter
The mini-project which aims to measure the voltage precisely. The voltmeter uses ICL7107 Analog to Digital Converter Microprocessor
31 parts2
2 layers60 × 70 mm
- Size
- 60 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 36
- Pads
- 75
- Tracks, vias
- 164, 28
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 25 Apr 2025
- Updated
- 7 May 2025
Overview
Sensor is an open-source printed circuit board by Frayzen, from the Frayzen/TemperatureSensor repository on GitHub. It is a 2-layer board of 60 × 70 mm with 13 parts on 36 nets, routed with 164 tracks and 28 vias.
It is built around the ATTINY1616-SN and SA39-11EWA. Its parts include 4 capacitors and 2 connectors. It belongs with the sensors and measurement boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATTINY1616-SN
SOIC-20-300mil-40℃~+105℃ 1.8V~5.5V 16KB 18 20MHz 256Byte 2KB 8 Bit AVR Built-in FLASH SOIC-20-300mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SA39-11EWA
DIP-100.39 1 13mmx10mmx7mm 7 Segment 75mW Common Anode Red DIP-10 LED Segment Displays ROHSKingbrightLED Segment Displays
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4, C5, C6 |
| 3 | SA39-11EWA | Display_7Segment:Sx39-1xxxxx | Sign/Hundreds, Tenth, Units |
| 1 | 150Ω | Resistor_SMD:R_0603_1608Metric | R |
| 1 | ATtiny1616-S | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | Attiny1616 |
| 1 | Attiny1616 Programmer | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Barrel | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | J2 |
| 1 | LDO | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | Volt. Reg |
| 1 | MCP9700Ax-ELT | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | Thermistor |
Questions
How big is the Sensor PCB?
It measures 60 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sensor use?
13 parts, built around the ATTINY1616-SN and SA39-11EWA. 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 Sensor KiCad files?
From the Frayzen/TemperatureSensor repository on GitHub, at the commit this page was made from: the board is Sensor.kicad_pcb and its schematic Sensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sensor design in my own project?
Its repository states no licence, so its author keeps all rights: ask Frayzen before reusing the design.
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