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Easysdr

michalin·easysdr·schematic/schematic.kicad_pcb

Easysdr PCB layout, top view — open source ESP32 board by michalin
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About the Easysdr PCB

Easysdr is an open source ESP32 PCB design by michalin, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 67.3 × 74.9 mm, with 32 components from 17 distinct parts.

Its main chip is the ESP32-DEVKIT, from the ESP32 family. Other key parts include the CBT3253, LM4562 and Si5351A-B-GT. By type, the board carries 16 capacitors, 6 resistors, 5 connectors, 4 ICs and 1 crystal.

It belongs with the rf & radio designs in this gallery.

From the project

Super Simple SDR Receiver

Easysdr, from the project README
From the project README

Main components on the Easysdr

CBT3253LM4562ESP32-DEVKITSi5351A-B-GT

Easysdr bill of materials (BOM)

32 components, 17 distinct parts.

QtyPartRefs
1
CBT3253
U1
1
LM4562
U2
1
ESP32-DEVKIT
U3
1
Si5351A-B-GT
U4
1
25MHz
Y1
1
RF_In
J1
1
OSC3
J2
1
I
J3
1
Q
J4
1
+5V
J5
3
1n
C1, C8, C9
4
220n
C2, C3, C4, C5
2
470p
C6, C7
3
100n
C10, C11, C12
2
2..20p
C13, C14
2
1µ
C15, C16
6
10k
R1, R2, R3, R4, R5, R6

Easysdr design files

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

Easysdr: common questions

What microcontroller does the Easysdr use?

The Easysdr is built around the ESP32-DEVKIT, from the ESP32 family.

How big is the Easysdr PCB?

The Easysdr measures 67.3 × 74.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Easysdr?

32 components, from 17 distinct parts. The full bill of materials is listed on this page.

Where can I download the Easysdr design files?

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

Can I use the Easysdr design in my own project?

Yes, under the terms of its GPL-3.0 license, which michalin chose for the repository.

Can I test firmware for the Easysdr without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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