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Ugrow3

Dhyan-M·MuGrow-TA·Step3_Final_Schematic/ugrow3.kicad_pcb

Ugrow3 PCB layout, top view — open source AVR/Arduino board by Dhyan-M
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About the Ugrow3 PCB

Ugrow3 is an open source AVR/Arduino PCB design by Dhyan-M, published on GitHub. It is a 2-layer board measuring 70 × 45 mm, with 77 components from 44 distinct parts.

Its main chip is the ATTINY1616-SN, from the AVR/Arduino family. Other key parts include the MCP1700T-3302E/TT, MCP6004-I/SL, TMP117MAIDRVR and 24LC256-I/SN. By type, the board carries 28 resistors, 18 capacitors, 8 connectors, 6 transistors, 5 ICs and 4 diodes.

From the project

Release ID: UGrow3-SCH-V2 Status: COMPLETE — automated logical ERC 38/38 PASS Scope: final five-sheet schematic, exact package assignment, released PCB netlist and power/current verification

Release ID: UGrow3-SCH-V2 Status: COMPLETE — automated logical ERC 38/38 PASS Scope: final five-sheet schematic, exact package assignment, released PCB netlist and power/current verification

Open ugrow3.kicadpro in KiCad. The root schematic ugrow3.kicadsch links these five logical sheets:

1. power.kicadsch — protected 5 V input and 3.3 V regulation 2. mcu.kicadsch — ATtiny1616, programming, UART and status LED 3. optical.kicadsch — 620 nm LED drivers and three BPW34 TIA channels 4. thermalactuator.kicadsch — TMP117, heater driver and DNP actuator interface 5. memoryio.kicadsch` — EEPROM…

Main components on the Ugrow3

MCP1700T-3302E/TTATTINY1616-SNMCP6004-I/SLTMP117MAIDRVR24LC256-I/SN

Ugrow3 bill of materials (BOM)

77 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP1700T-3302E/TT
MCP1700-3302E/TT
U1
1
ATTINY1616-SN
ATtiny1616-SSN
U2
1
MCP6004-I/SL
U3
1
TMP117MAIDRVR
U4
1
24LC256-I/SN
U5
1
AO3407A P-MOS REVERSE POLARITY
Q1
1
AO3400A LED A
Q2
1
AO3400A LED B
Q3
1
AO3400A LED C
Q4
1
AO3400A HEATER
Q5
1
AO3400A ACTUATOR
Q6
1
JST B2B-XH-A 5V INPUT
J1
1
JST B3B-XH-A UPDI PROGRAM
J2
1
JST B4B-XH-A DEBUG UART
J3
1
JST B2B-XH-A / ICSTATION GY17845 HEATER
J4
1
JST B2B-XH-A OPTIONAL ACTUATOR DNP
J5
1
JST B2B-XH-A OPTIONAL LIMIT DNP
J6
1
JST B4B-XH-A I2C TEST
J7
1
JST B3B-XH-A SPARE ADC / TEST
J8
1
PTC 1.5A
F1
Show 24 more
QtyPartRefs
1
PTC 0.50A HEATER
F2
1
VISHAY BPW34 PHOTODIODE A
PD1
1
VISHAY BPW34 PHOTODIODE B
PD2
1
VISHAY BPW34 PHOTODIODE C
PD3
1
MARKTECH MTE3061N-UO 620NM A
LED1
1
MARKTECH MTE3061N-UO 620NM B
LED2
1
MARKTECH MTE3061N-UO 620NM C
LED3
1
SMF5.0A TVS
D1
1
GREEN POWER LED
D2
1
BLUE STATUS LED
D3
1
SS14 FLYBACK
D4
1
100UF
100uF
C1
1
10UF
10uF
C2
5
100NF
100nF
C3, C6, C9, C17, C18
4
1UF
1uF
C4, C5, C8, C10
1
4.7UF
4.7uF
C7
3
33PF
33pF
C11, C13, C15
3
10NF
10nF
C12, C14, C16
11
100kΩ
R1, R4, R5, R6, R8, R10, R14, R17 +3
5
1kΩ
R2, R3, R7, R9, R11
3
220Ω
R12, R15, R18
5
100Ω
R13, R16, R19, R22, R24
2
10kΩ
R21, R26
2
4.7kΩ
R27, R28

Ugrow3 design files

The KiCad project lives in the Dhyan-M/MuGrow-TA repository on GitHub; these links point at the commit this page was built from.

Ugrow3: common questions

What microcontroller does the Ugrow3 use?

The Ugrow3 is built around the ATTINY1616-SN, from the AVR/Arduino family.

How big is the Ugrow3 PCB?

The Ugrow3 measures 70 × 45 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ugrow3?

77 components, from 44 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Ugrow3 design files?

From the Dhyan-M/MuGrow-TA repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Ugrow3 design in my own project?

The repository has no license, so all rights stay with Dhyan-M. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Ugrow3 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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