2 layers50 × 44 mm
Baseboard
xtompok/home_automation_switchboard
Board fitting into wall switch, support for 1Wire, quadrature encoder, and much more. RS-485
82 partsMIT
2 layers40 × 70 mm
Scale
phlmn/drynkit-pcb- Size
- 40 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 46
- Pads
- 159
- Tracks, vias
- 364, 61
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 2 Jun 2021
- Updated
- 15 Dec 2023
Overview
Scale is an open-source printed circuit board by phlmn, from the phlmn/drynkit-pcb repository on GitHub. It is a 2-layer board of 40 × 70 mm with 55 parts on 46 nets, routed with 364 tracks and 61 vias.
It is built around the ESP-12E, HX711 and MP2451DJ, with the B5819W and GZ2012D601TF among its other parts. Its parts include 18 resistors, 13 capacitors, 6 connectors, 4 ICs and 2 diodes. It belongs with the ESP8266 boards of this library.
Main components
5
ESP-12E
SMD,24x16mm-20℃~+70℃ -90dBm 16dBm 170mA 2.4GHz 3V~3.6V 56mA 802.11b/g/n ESP8266 Chip On-board PCB Antenna Over-the-air (OTA) update UART、SPI、I2C SMD,24x16mm WiFi Modules ROHSAi-ThinkerWiFi Modules
HX711
SOP-16-40℃~+85℃ 1.4mA 10Hz、80Hz 1MHz~20MHz、11.0592MHz 2 2.6V~5.5V 20mV、40mV、80mV 24 Built-in External、Built-in SPI Support Yes SOP-16 Analog to Digital Converters (ADC) ROHSAvia SemiconAnalog To Digital Converters (ADC)
MP2451DJ
TSOT-23-6-40℃~+125℃ 1 130uA 2MHz 3.3V~36V Adjustable Buck Buck Built-in TSOT-23-6 DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
GZ2012D601TF
0805-55℃~+125℃ 1 300mΩ 500mA 600Ω@100MHz ±25% 0805 Ferrite Beads ROHSSunlordFerrite Beads
README
README.mddrynk.it PCB
Repository Structure
| Folder | Description |
|---|---|
| board | The KiCAD files for the PCB |
| bugs | Known bugs and fixes for boards |
| datasheets | Relevant datasheets |
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 4.7k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R5, R6, R7, R8, R9, R10, R12, R14, R17, R18 |
| 4 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C4, C7, C11 |
| 3 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C2, C3, C9 |
| 3 | 75k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R13, R15, R16 |
| 2 | 100 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R2 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C6, C8 |
| 2 | B5819W | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | DNP | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C14, C15 |
| 1 | 2.2 - 4.7uH | Inductor_SMD:L_1210_3225Metric_Pad1.42x2.65mm_HandSolder | L1 |
| 1 | 20K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3 |
| 1 | 24k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R11 |
| 1 | 33pF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C10 |
| 1 | 4.7uF/25V | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C5 |
| 1 | 500mA/24V (CFS06V3T1R0) | Fuse:Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolder | F1 |
| 1 | 8.2K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R4 |
| 1 | Cell A | Connector_Wire:SolderWirePad_1x03_P3.175mm_Drill0.8mm | J1 |
| 1 | Cell B | Connector_Wire:SolderWirePad_1x03_P3.175mm_Drill0.8mm | J2 |
| 1 | Cell C | Connector_Wire:SolderWirePad_1x03_P3.175mm_Drill0.8mm | J3 |
| 1 | Cell D | Connector_Wire:SolderWirePad_1x03_P3.175mm_Drill0.8mm | J4 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J6 |
| 1 | ESP-12E | RF_Module:ESP-12E | U2 |
| 1 | GZ2012D601TF | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | FB1 |
| 1 | HX711 | Package_SO:SOP-16_4.55x10.3mm_P1.27mm | U1 |
| 1 | Jack-DC | Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal | J5 |
| 1 | Jumper_NO_Small | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | LM75B | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | LOGO | scale:logo | G*** |
| 1 | LOGO | scale:matekalypse_2 | G*** |
| 1 | MP2451 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U3 |
| 1 | Q_PNP_BCE | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_EVQP7C | SW1 |
The 51 most common of 55 parts.
Questions
How big is the Scale PCB?
It measures 40 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Scale use?
55 parts, built around the ESP-12E, HX711, MP2451DJ and B5819W. 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 Scale KiCad files?
From the phlmn/drynkit-pcb repository on GitHub, at the commit this page was made from: the board is board/scale.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Scale design in my own project?
Its repository states no licence, so its author keeps all rights: ask phlmn before reusing the design.
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