HardLabs

Piezo amplifier

BeeHive-org·BeeHive·hardware/PCBs/piezo_amplifier/piezo_amplifier.kicad_pcb

Piezo amplifier PCB layout, top view — open source ESP32 board by BeeHive-org
Simulate this board

About the Piezo amplifier PCB

Piezo amplifier is an open source ESP32 PCB design by BeeHive-org, published on GitHub under the MIT license. It is a 2-layer board measuring 188.6 × 95.9 mm, with 39 components from 20 distinct parts.

Its main chip is the ESP32-DEVKITC-32D, from the ESP32 family. Other key parts include the LM2596T-5, LM393 and L7806. By type, the board carries 20 resistors, 5 connectors, 4 ICs, 4 capacitors, 2 transistors and 2 diodes.

It belongs with the audio designs in this gallery.

From the project

BeeHive: a flexible open hardware platform for behavioural experiments

In this folder users & collaborators will find designs and considerations about the hardware parts being developed in this project.

The pin mapping of the ESP32 controller and our board can be seen here:

Using table 2 of this manual we can see all the options for each pin.

Piezo amplifier, from the project README
From the project README

Main components on the Piezo amplifier

LM2596T-5ESP32-DEVKITC-32DLM393L7806

Piezo amplifier bill of materials (BOM)

39 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM2596T-5
LM393
U1
1
ESP32-DEVKITC-32D
Opamp_Quad
U2
1
LM393
U3
1
L7806
U4
2
PN2222A
Q1, Q2
1
BM04B-SRSS-TB_LF__SN_
Conn_01x04_Female
J1
1
CONN_01X02
piezzo1
P1
2
CONN_01X02
12V
P2, P3
1
piezzo2
P4
2
R_Potentiometer
RV1, RV2
2
LED
D1, D2
2
10UF
22pF
C1, C2
1
100UF
22pF
C3
1
22pF
C4
1
560
100M
R1
6
10k
R2, R4, R6, R12, R14, R16
2
20k
R3, R13
4
3k
R5, R7, R15, R17
4
270
R8, R10, R18, R20
3
100M
R9, R11, R19

Piezo amplifier design files

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

Piezo amplifier: common questions

What microcontroller does the Piezo amplifier use?

The Piezo amplifier is built around the ESP32-DEVKITC-32D, from the ESP32 family.

How big is the Piezo amplifier PCB?

The Piezo amplifier measures 188.6 × 95.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Piezo amplifier?

39 components, from 20 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 Piezo amplifier design files?

From the BeeHive-org/BeeHive 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 Piezo amplifier design in my own project?

Yes, under the terms of its MIT license, which BeeHive-org chose for the repository.

Can I test firmware for the Piezo amplifier 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 BeeHive

Similar boards