2 layers163.4 × 100.6 mm Arm Mainboard, the printed circuit board in 3D

Arm Mainboard

Genral repository for files pertaining to the robotic arm that is part of SENSA GROUP education.

Size: 163.4 × 100.6 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 113
Nets: 138
Pads: 445
Tracks, vias: 1,105, 264
Pours: 2
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 2 Aug 2021
Updated: 9 Nov 2021

Overview

Arm Mainboard is an open-source printed circuit board by SensaGroup, from the SensaGroup/RoboticArm repository on GitHub, published under the MIT licence. It is a 2-layer board of 163.4 × 100.6 mm with 113 parts on 138 nets, routed with 1,105 tracks and 264 vias.

It is built around the ESP32-WROOM-32U. Its parts include 32 resistors, 24 capacitors, 18 connectors, 4 ICs and 4 switches. It belongs with the computers and single-board computers boards and the ESP32 boards of this library.

Main components

ESP32-WROOM-32U
SMD,19.2x18mm-40℃~+85℃ -97dBm 2.4GHz 20.5dBm 3V~3.6V Bluetooth4.2 ESP32-DOWD UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC、CAN SMD,19.2x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules

README

README.md

SENSA - Robotic Arm

Genral repository for files pertaining to the robotic arm that is part of SENSA GROUP education.

Description

The PCB interfaces the microcontroller with 5 stepper drivers and 5 encoders.

Features

Main controller: ESP32WROOM-U.
Wifi.
Bluetooth.
Programming over USB C.
2x TB6600 Drivers.
3x pinouts for general stepstick drivers.
5x AMT102 encoder inputs.
Software (TBD)

Pictures

Top_view

Back_view

Category and platform

Computers and single-board computers ESP32

Project files

Show this board on your page

https://pcbkit.io/boards/SensaGroup/RoboticArm

The board's own page, for a message or a post.

Source

Repository: SensaGroup/RoboticArm
Board file: Arm_Mainboard/Arm_Mainboard.kicad_pcb
Commit: 3ae8d6b
Licence: MIT

Parts

113

Qty	Value	Footprint	References
10	2K	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R13, R15, R17, R19, R21, R23, R25, R27, R29, R31
10	3K9	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14, R16, R18, R20, R22, R24, R26, R28, R30, R32
6	100R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4, R5, R6, R7, R9, R10
6	12V	Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm	5V, 5V, 5V, 12V, 12V, 12V
6	CP	Capacitor_SMD:CP_Elec_5x5.3	C10, C11, C12, C13, C14, C15
4	180uF	Capacitor_SMD:CP_Elec_6.3x5.9	C18, C19, C20, C21
3	100uF	Capacitor_SMD:CP_Elec_8x10	C22, C23, C24
3	CONN	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	J14, J22, J26
3	DIP SWITCH	ArmFootprints:SW_DS04-254-2-03BK-SMT	S1, S2, S3
3	Pololu_Breakout_A4988	ArmFootprints:Pololu_Breakout-16_15.2x20.3mm	A1, A2, A3
2	0.01uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C16, C17
2	0.1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2, C4
2	100nF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C6, C7
2	10K	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R8, R12
2	10uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C3
2	15uF	Capacitor_SMD:CP_Elec_5x5.3	C8, C9
2	22uH	Inductor_SMD:L_10.4x10.4_H4.8	L1, L2
2	5K1	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2, R3
2	D_Schottky	Package_TO_SOT_SMD:TO-263-2_TabPin1	D4, D5
2	LED	Diode_SMD:D_1206_3216Metric_Castellated	RX, TX
1	105450-0101	ArmFootprints:MOLEX_105450-0101	USB
1	1K	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
1	470R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R11
1	470nF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5
1	BOOT OPTION	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J7
1	CONN_NEMA23_1	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	AXIS1
1	CONN_NEMA23_2	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	J16
1	D+	TestPoint:TestPoint_THTPad_3.0x3.0mm_Drill1.5mm	D+
1	D-	TestPoint:TestPoint_THTPad_3.0x3.0mm_Drill1.5mm	D-
1	D_Zener	Diode_SMD:D_SOD-323	D3
1	ENC_AXIS1	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	J27
1	ENC_AXIS2	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	J28
1	ENC_AXIS3	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	J29
1	ENC_AXIS4	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	J30
1	ENC_AXIS5	Connector_JST:JST_EH_S4B-EH_1x04_P2.50mm_Horizontal	J31
1	ESP32-WROOM-32U	RF_Module:ESP32-WROOM-32U	U1
1	FAN HEADER 1	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J9
1	FAN HEADER 2	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J10
1	Fuse	Fuse:Fuse_2920_7451Metric	F1
1	GND	TestPoint:TestPoint_THTPad_3.0x3.0mm_Drill1.5mm	GND
1	GPIO_PINOUT	Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical	MCP2200_GPIO
1	JTAG	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J2
1	JTAG SELECTOR	ArmFootprints:SW_DS04-254-2-04BK-SMT	S4
1	LM2678S-5.0/NOPB	Package_TO_SOT_SMD:TO-263-7_TabPin4	U4
1	LM2678SX-3.3/NOPB	Package_TO_SOT_SMD:TO-263-7_TabPin4	U3
1	LOGO	logos:QRcode_Smaller	G***
1	LOGO	logos:logo3	G***
1	MCP2200-I-SS	Package_SO:SSOP-20_5.3x7.2mm_P0.65mm	U2
1	NEMA23_1	ArmFootprints:Molex_12PIN	J20
1	NEMA23_2	ArmFootprints:Molex_12PIN	J19
1	POWER	ArmFootprints:TerminalBlock_bornier-2_P5.08mmCOPY	J8
1	P_CH MOSFET	Package_TO_SOT_SMD:TO-252-3_TabPin2	Q1
1	RST	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	RST
1	Resonator	Crystal:Resonator_SMD_muRata_CSTxExxV-3Pin_3.0x1.1mm	Y1
1	UART	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J6
1	USB PINOUT	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J4
1	VDD33	TestPoint:TestPoint_THTPad_3.0x3.0mm_Drill1.5mm	3.3V
1	VDD5	TestPoint:TestPoint_THTPad_3.0x3.0mm_Drill1.5mm	5V
1	V_IN	TestPoint:TestPoint_THTPad_3.0x3.0mm_Drill1.5mm	12V

Similar boards

2 layers55 × 80 mm
Board esp32 v2
sudomesh/disaster-radio
A (paused) work-in-progress long-range, low-bandwidth wireless disaster recovery mesh network powered by the sun.
101 parts1.1k
2 layers110 × 110 mm
FreeDSP aurora
freeDSP/freeDSP-aurora
freeDSP ADAU1452 with 8 analog input, 8 analog outputs, S/P-DIF I/O, ADAT I/O, USB Audio Class2, WiFi, Bluetooth
506 parts226CC-BY-SA-4.0
2 layers63.5 × 63.5 mm
Main pcb
peterkrull/quad
Firmware, hardware and documentation for my autonomous quad copter project
45 parts210GPL-3.0
4 layers65 × 56 mm
Edrumulus
corrados/edrumulus
Open Source E-Drum Trigger Module
112 parts163GPL-2.0
2 layers94 × 79 mm
5 - Lizard Car
TRD-B/Lizard
3D printed RC race car with custom electronics
54 parts129CC-BY-4.0
2 layers263.5 × 63.5 mm
Tobor
evezor/tobor_v00
Tobor (robot spelled backwards), was built to be the most versatile open-source robotics system
124 parts126CERN-OHL-P-2.0
2 layers121 × 68 mm
Freeds sanchez
pablozg/freeds
Derivador de energía solar excedente creado por Pablo Zerón, Diseño PCB por Amcalo, Tester original por Aeizoon, Wiki por Zoilo Mora
42 parts108
2 layers74.4 × 51.2 mm
Esp32-wroom timer
AlessandroAU/Chorus32-ESP32LapTimer
This is an ESP32 port of the popular Chorus RF Laptimer
66 parts102GPL-3.0

Questions

How big is the Arm Mainboard PCB?

It measures 163.4 × 100.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Arm Mainboard use?

113 parts, built around the ESP32-WROOM-32U. 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 Arm Mainboard KiCad files?

From the SensaGroup/RoboticArm repository on GitHub, at the commit this page was made from: the board is Arm_Mainboard/Arm_Mainboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Arm Mainboard design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).