2 layers58 × 28 mm TheKNOBDaughterboard, the printed circuit board in 3D

TheKNOBDaughterboard

In: File > Preference > Additional Boards Manager URLS Add: https://dl.espressif.com/dl/packageesp32index.json, http://arduino.esp8266.com/stable/packageesp8266comindex.json Select: Tools > Board > Board Manager Search…

Open in PCBKit

Size: 58 × 28 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 51
Nets: 35
Pads: 151
Tracks, vias: 231, 76
Pours: 10
Routed: Yes
KiCad: KiCad 6 (file 20211014)
Created: 30 Sep 2021
Updated: 1 Dec 2022

Overview

TheKNOBDaughterboard is an open-source printed circuit board by makerust, from the makerust/TheKNOB repository on GitHub. It is a 2-layer board of 58 × 28 mm with 51 parts on 35 nets, routed with 231 tracks and 76 vias.

It is built around the LMR62421XMF and DW01. Its parts include 19 resistors, 11 capacitors, 5 diodes, 5 connectors and 4 ICs.

Main components

README

TheKNOB

First Time Setup for development

git pull --recurse-submodules Sketch > Include Library > Add .ZIP Library Navigate to the ESP library in thirdparty

In: File > Preference > Additional Boards Manager URLS Add: https://dl.espressif.com/dl/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json Select: Tools > Board > Board Manager Search: ESP32 Install Board Library Select: Tools > Board > Board Manager > ESP32 Dev Module

Parts

Qty	Value	Footprint	References
6	10k	Resistor_SMD:R_0603_1608Metric	R9, R10, R11, R12, R15, R20
3	33pF	Capacitor_SMD:C_0603_1608Metric	C7, C10, C11
3	47uF	Capacitor_SMD:C_1206_3216Metric	C2, C8, C9
3	D_Schottky	Diode_SMD:D_SOD-123	D3, D4, D5
2	100k	Resistor_SMD:R_0603_1608Metric	R17, R19
2	1uF	Capacitor_SMD:C_0603_1608Metric	C3, C6
2	3.6v	Diode_SMD:D_SOD-323_HandSoldering	D1, D2
2	470k	Resistor_SMD:R_0603_1608Metric	R16, R18
2	5.1k	Resistor_SMD:R_0603_1608Metric	R3, R4
2	6.8uH	Inductor_SMD:L_1210_3225Metric	L1, L2
2	75R	Resistor_SMD:R_0603_1608Metric	R7, R8
2	Q_NMOS_GSD	Package_TO_SOT_SMD:SOT-23	Q1, Q2
2	SW_Push	TheKNOBFootprintLibrary:ALPS_SKPM	SW1, SW2
1	1.5k	Resistor_SMD:R_0603_1608Metric	R6
1	100nF	Capacitor_SMD:C_0603_1608Metric	C1
1	10nF	Capacitor_SMD:C_0603_1608Metric	C5
1	10uF	Capacitor_SMD:C_0603_1608Metric	C4
1	16k	Resistor_SMD:R_0603_1608Metric	R14
1	1k	Resistor_SMD:R_0603_1608Metric	R2
1	330R	Resistor_SMD:R_0603_1608Metric	R5
1	3k	Resistor_SMD:R_0603_1608Metric	R1
1	500mA	Fuse:Fuse_1206_3216Metric	F1
1	Conn_01x02_Female	Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal	J1
1	Conn_01x03	Connector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical	J3
1	Conn_01x04	Connector_JST:JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical	J4
1	Conn_01x11	Connector_JST:JST_EH_B11B-EH-A_1x11_P2.50mm_Vertical	J5
1	DW01	Package_TO_SOT_SMD:SOT-23-6	U2
1	LDK130-33_SOT23_SOT353	Package_TO_SOT_SMD:SOT-353_SC-70-5	U4
1	LMR62421XMF	Package_TO_SOT_SMD:SOT-23-5	U3
1	MCP73831-5-OT	Package_TO_SOT_SMD:SOT-23-5	U1
1	USB_C_Receptacle_USB2.0	Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12	J2

Questions

How big is the TheKNOBDaughterboard PCB?

It measures 58 × 28 mm and has 2 copper layers, 1.6 mm thick.

What parts does the TheKNOBDaughterboard use?

51 parts, built around the LMR62421XMF and DW01. 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 TheKNOBDaughterboard KiCad files?

From the makerust/TheKNOB repository on GitHub, at the commit this page was made from: the board is Hardware/Electronics/TheKNOBDaughterboard.kicad_pcb and its schematic Hardware/Electronics/TheKNOBDaughterboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the TheKNOBDaughterboard design in my own project?

Its repository states no licence, so its author keeps all rights: ask makerust before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/makerust-theknob" title="TheKNOBDaughterboard in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/makerust-theknob.jpg" alt="TheKNOBDaughterboard" width="1200" height="900">

A picture that opens the board, for a README

[![TheKNOBDaughterboard](https://pcbkit.io/embed/boards/makerust-theknob.jpg?size=s)](https://pcbkit.io/boards/makerust-theknob)

Source

Repository: makerust/TheKNOB
Board file: Hardware/Electronics/TheKNOBDaughterboard.kicad_pcb
Commit: be90fa6
Licence: Not stated

Similar boards

2 layers50 × 70 mm
Time2time
Resaj/time2time
Chronometer with partials measurement for the line-following competitions
97 parts5
4 layers83 × 106 mm
Asynthosc
everedero/asynth2osc
Modular analog synth to OpenOSC bridge
268 parts4GPL-3.0
4 layers70 × 40 mm
Controller
Gustice/LightController
A ESP32 based LED-Controller for various light scenarios
108 parts3MIT
2 layers38.1 × 38.1 mm
ESP Sensor Board
emwjacobson/ESP_Sensor_Board

43 parts1
2 layers119 × 79 mm
Home Ambient
abrahanlp/Home-Ambient
2-wire home thermostat with temperature, humidity, pressure and air quality measures.
62 partsAGPL-3.0
2 layers109.8 × 41.5 mm
Base
AL-255/Flora2
Numitron Clock
59 partsCERN-OHL-S-2.0
4 layers86.4 × 68.6 mm
Capstone
camerondm9/ece4600capstone
Code for our capstone project
238 parts
2 layers78 × 110 mm
Wis controller v0.3
diegobouvier/Wisflow-lora_valve_controller
Kicad proyecto for a LoRa remote valve controler actuator
68 parts