HardLabs

328p design

thesunRider·RFGen·hardware_design/328p_design/328p_design.kicad_pcb

328p design PCB layout, top view — open source AVR/Arduino board by thesunRider

About the 328p design PCB

328p design is an open source AVR/Arduino PCB design by thesunRider, published on GitHub under the MIT license. It is a 2-layer board measuring 76 × 88 mm, with 51 components from 29 distinct parts.

Its main chip is the ATmega328-P, from the AVR/Arduino family. Other key parts include the TL431LP, 74HC04 and L7805. By type, the board carries 14 capacitors, 11 connectors, 9 resistors, 6 transistors, 4 ICs and 2 jumpers.

From the project

Lab Grade RF Generator (Square Wave) Made using Arduino and SI2302 Module

This is an open source DIY Square wave generator. There are two versions included: - Blue pill - (1Hz - 960Mhz) - Atmega328p/Arduino (1Hz - 250Mhz)

- Si5351 - Channel A,B (1Khz - 250Mhz) - CMT2119A - Channel E (only for bluepill version: 250Mhz - 960Mhz)

https://github.com/user-attachments/assets/bd40d5bd-5a4e-4a5a-9730-a542df9f6650

- Upload 328p schematics for an Arduino based generator. - Upload bluepill schematic for Bluepilll based generator.

328p design, from the project README
From the project README

Main components on the 328p design

ATmega328-PTL431LP74HC04L7805

328p design bill of materials (BOM)

51 components, 29 distinct parts.

QtyPartRefs
1
ATmega328-P
U1
1
TL431LP
U2
1
74HC04
U3
1
L7805
U4
4
BC547
Q1, Q3, Q4, Q6
2
BC557
Q2, Q5
1
20Mhz
Y1
1
select_rotary
J1
1
mode_rotary
J2
1
lcd_socket
J3
1
comms
J4
1
si5351
J5
1
clk0
J6
1
clk2
J7
1
bias_pot
J8
1
pwmD
J9
1
pwmC
J10
1
pwrIn
J11
1
Buzzer
BZ1
2
Jumper_2_Open
JP1, JP2
Show 9 more
QtyPartRefs
1
R_Potentiometer
RV1
2
100u
L1, L2
2
22p
C1, C2
5
100n
C3, C4, C5, C11, C13
5
10n
C6, C7, C8, C10, C15
2
100u
C12, C14
5
10k
R1, R2, R6, R8, R10
1
2.2k
R4
3
1k
R5, R7, R9

328p design design files

The KiCad project lives in the thesunRider/RFGen repository on GitHub; these links point at the commit this page was built from.

328p design: common questions

What microcontroller does the 328p design use?

The 328p design is built around the ATmega328-P, from the AVR/Arduino family.

How big is the 328p design PCB?

The 328p design measures 76 × 88 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 328p design?

51 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the 328p design design files?

From the thesunRider/RFGen repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 328p design design in my own project?

Yes, under the terms of its MIT license, which thesunRider chose for the repository.

Can I test firmware for the 328p design 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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