2 layers49.8 × 48.3 mm
2 layers19.6 × 26.2 mm
Wifimeter
atx/wifimeter2ESP8266 board for the Uni-T UT61E multimeter Work In Progress
- Size
- 19.6 × 26.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 32
- Pads
- 111
- Tracks, vias
- 367, 34
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 30 Mar 2015
- Updated
- 6 Apr 2015
Overview
Wifimeter is an open-source printed circuit board by atx, from the atx/wifimeter repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 19.6 × 26.2 mm with 28 parts on 32 nets, routed with 367 tracks and 34 vias.
It is built around the ESP8266EX and LM358. Its parts include 8 resistors, 6 capacitors, 5 ICs, 2 diodes and 2 connectors. It belongs with the ESP8266 boards of this library.
Main components
2
ESP8266EX
QFN-32-EP(5x5)-40℃~+125℃ -91dBm 120mA 2.4GHz 2.4GHz~2.4835GHz 2.5V~3.6V 21.5dBm 50mA 72.2Mbps SPI、UART、I2C、I2S WiFi transceiver QFN-32-EP(5x5) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
README
README.mdwifimeter
ESP8266 board for the Uni-T UT61E multimeter
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1uF | Resistors_SMD:R_0603_HandSoldering | C4, C5, C6 |
| 2 | 10k | Resistors_SMD:R_0603_HandSoldering | R6, R8 |
| 2 | 10pF | Resistors_SMD:R_0603_HandSoldering | C1, C3 |
| 1 | 100k | Resistors_SMD:R_0603_HandSoldering | R7 |
| 1 | 12k | Resistors_SMD:R_0603_HandSoldering | R1 |
| 1 | 200 | Resistors_SMD:R_0603_HandSoldering | R4 |
| 1 | 26MHz | Misc:CRYSTAL_2x2.5 | X1 |
| 1 | 470k | Resistors_SMD:R_0603_HandSoldering | R2 |
| 1 | 47k | Resistors_SMD:R_0603_HandSoldering | R5 |
| 1 | 5.6pF | Resistors_SMD:R_0603_HandSoldering | C2 |
| 1 | ANTENNA | Misc:2450AT18B100E | A1 |
| 1 | BATT | Misc:JST-1x2-1.25 | P2 |
| 1 | BD47xx | Housings_SOT-23_SOT-143_TSOT-6:SOT-23-5 | U1 |
| 1 | CONN | Pin_Headers:Pin_Header_Straight_2x03 | P1 |
| 1 | ESP8266 | Housings_DFN_QFN:QFN-32-1EP_5x5mm_Pitch0.5mm | U2 |
| 1 | Flash | SMD_Packages:SOIC-8-N | U4 |
| 1 | JUMPER | Pin_Headers:Pin_Header_Straight_1x02 | JP1 |
| 1 | LED | LEDs:LED-3MM | D2 |
| 1 | LED | Resistors_SMD:R_0805_HandSoldering | D1 |
| 1 | LM358 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U5 |
| 1 | MIC550x | Housings_SOT-23_SOT-143_TSOT-6:SOT-23-5 | U3 |
| 1 | R | Resistors_SMD:R_0603_HandSoldering | R3 |
The 26 most common of 28 parts.
Questions
How big is the Wifimeter PCB?
It measures 19.6 × 26.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Wifimeter use?
28 parts, built around the ESP8266EX and LM358. 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 Wifimeter KiCad files?
From the atx/wifimeter repository on GitHub, at the commit this page was made from: the board is pcb/wifimeter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wifimeter design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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