HardLabs

Programmer

zachmorr·esper·hardware/programmer/programmer.kicad_pcb

Programmer PCB layout, top view — open source ESP32 board by zachmorr

About the Programmer PCB

Programmer is an open source ESP32 PCB design by zachmorr, published on GitHub under the MIT license. It is a 2-layer board measuring 40 × 20 mm, with 21 components from 15 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the AZ1117EH-3.3TRG1 and ASDMB-12.000MHz. By type, the board carries 8 capacitors, 4 resistors, 3 ICs, 2 transistors, 2 connectors and 2 diodes.

It belongs with the usb & debug tools designs in this gallery.

From the project

Ad Blocking with an ESP32

All Esper hardware is designed to be as easy to modify and manufacture as possible. For the most part this means using free, open-source tools and simplifying the design to have the smallest DOM possible.

KiCAD is used for all PCB design since it is free and has a large community support.

The Esper device is designed to be manufactured and assembled at JLCPCB. At low quantities (5-10 boards), no other board house comes close on price and ease of use.

Programmer, from the project README
From the project README

Main components on the Programmer

AZ1117EH-3.3TRG1ESP32-WROOM-32EASDMB-12.000MHz

Programmer bill of materials (BOM)

21 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AZ1117EH-3.3TRG1
TLV75533PDBV
U1
1
ESP32-WROOM-32E
FT2232HL
U2
1
ASDMB-12.000MHz
U3
2
2N7002
2N7002ET1G
Q1, Q2
1
10118192-0001LF
J1
1
3220-10-0100-00
J2
1
C72043
BLU
D1
1
RS-3535MWAR
GRN
D2
1
1UF
0.1uF
C1
4
0.1UF
0.1uF
C2, C5, C6, C7
1
10UF
1uF
C3
2
0.1uF
C8, C9
1
470
12K
R1
1
10K
12K
R2
2
470
R3, R4

Programmer design files

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

Programmer: common questions

What microcontroller does the Programmer use?

The Programmer is built around the ESP32-WROOM-32E, from the ESP32 family.

How big is the Programmer PCB?

The Programmer measures 40 × 20 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Programmer?

21 components, from 15 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 Programmer design files?

From the zachmorr/esper repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Programmer design in my own project?

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

Can I test firmware for the Programmer 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.

More boards in esper

Similar boards