2 layers34.5 × 26.5 mm
BlinkySWR-0.2-S
bubnikv/BlinkySWR
Tiny, cheap, simple, accurate, self powered resistive SWR and power meter for SOTA and back packers
46 parts23GPL-2.0
2 layers50.5 × 28.5 mm
BlinkySWR-0.1
bubnikv/BlinkySWR23Tiny, cheap, simple, accurate, self powered resistive SWR and power meter for SOTA and back packers
- Size
- 50.5 × 28.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 28
- Pads
- 132
- Tracks, vias
- 216, 97
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Sep 2019
- Updated
- 25 Jun 2020
Overview
BlinkySWR-0.1 is an open-source printed circuit board by bubnikv, from the bubnikv/BlinkySWR repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 50.5 × 28.5 mm with 47 parts on 28 nets, routed with 216 tracks and 97 vias.
It is built around the ATTINY13A-SSH and HT7130-1. Its parts include 15 resistors, 10 capacitors, 10 diodes, 5 connectors and 2 ICs. It belongs with the sensors and measurement boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATTINY13A-SSH
SOIC-8-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 6 64Byte 64Byte 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Programmable watchdog SOIC-8 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
HT7130-1
SOT-89-25℃~+70℃@(Ta) 1 100mA 100mV@(1mA) 30V 3V 3uA Fixed Positive Short Circuit Protection SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdBlinkySWR
Tiny, cheap, simple, accurate, self powered resistive SWR and power meter for SOTA and back packers
The SWR and power meter is based on a resistive bridge. The forward and reflected power is sampled by an ATTiny13A micro controller. The micro controller is powered by rectifying a tiny fraction of the input power, and the measured SWR and power is displayed by smoothly interpolating 6 high efficiency LED diodes.
Firmware for the ATTiny13A is found here, while the simulation and design data is found here.
The following picture shows the initial prototype of BlinkySWR, indicating SWR slightly above 1:1.
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1n | Capacitors_SMD:C_0805 | C1, C2, C3, C4, C5, C6, C7 |
| 6 | 100R | Resistors_SMD:R_1206 | R7, R9, R10, R13, R14, R15 |
| 6 | OF-SMD2012HR | Diodes_SMD:D_0805 | D1, D2, D3, D4, D5, D6 |
| 4 | 1N5711 | Diodes_SMD:SOD-123 | D7, D8, D9, D10 |
| 3 | 500R | Resistors_SMD:R_0805 | R1, R2, R3 |
| 2 | 2k2 | Resistors_SMD:R_0805 | R6, R12 |
| 2 | 39k | Resistors_SMD:R_0805 | R5, R11 |
| 2 | BYPASS | Pin_Headers:Pin_Header_Straight_1x03 | JP1, JP2 |
| 2 | CONN_01X01 | Mounting_Holes:MountingHole_3.2mm_M3_Pad_Via | P2, P3 |
| 2 | SMA-15 | ok1hra:SMA-90 | J1, J2 |
| 1 | 1000u | Capacitors_THT:CP_Radial_D10.0mm_P5.00mm | C9 |
| 1 | 100n | Capacitors_SMD:C_0805 | C8 |
| 1 | 10k | Resistors_SMD:R_0805 | R8 |
| 1 | 1k | Resistors_SMD:R_0805 | R4 |
| 1 | ATTINY13A-SSH | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | IC1 |
| 1 | CONN_02X04 | Pin_Headers:Pin_Header_Straight_2x04 | P1 |
| 1 | C_Variable | Capacitors_THT:C_Axial_L5.1mm_D3.1mm_P10.00mm_Horizontal | C10 |
| 1 | FT37-43 | ok1hra:FT37-43-common-mode | L1 |
| 1 | HT7130-1 | TO_SOT_Packages_SMD:SOT-23-5 | U1 |
| 1 | T50-6 | ok1hra:T50-6-4 | T1 |
The 46 most common of 47 parts.
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Questions
How big is the BlinkySWR-0.1 PCB?
It measures 50.5 × 28.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BlinkySWR-0.1 use?
47 parts, built around the ATTINY13A-SSH and HT7130-1. 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 BlinkySWR-0.1 KiCad files?
From the bubnikv/BlinkySWR repository on GitHub, at the commit this page was made from: the board is kicad/01/BlinkySWR-0.1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the BlinkySWR-0.1 design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).