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Haptic controller2

rrzhang139·haptic-controller-pcb

Haptic controller2 PCB layout, top view — open source ESP32 board by rrzhang139

About the Haptic controller2 PCB

Haptic controller2 is an open source ESP32 PCB design by rrzhang139, published on GitHub. It is a 2-layer board measuring 84.3 × 96.5 mm, with 88 components from 24 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AP2112K-3.3, TCA9548APWR, DRV2605LDGS and 74HC595. By type, the board carries 25 capacitors, 23 resistors, 16 diodes, 13 ICs, 9 connectors and 2 switches.

It belongs with the robotics & motion and iot & wireless designs in this gallery.

From the project

Haptic motor controller PCB — ESP32-S3 + 8x DRV2605L + TCA9548A I2C mux

A custom PCB that independently drives up to 16 haptic motors via I2C, with an LED status grid. Designed in KiCad as a first PCB project, with future use as a haptic feedback interface for robot teleoperation.

1. MCU sends I2C commands to the TCA9548A mux to select a channel (0-7) 2. Each channel connects to one DRV2605L haptic driver (all share address 0x5A, but the mux isolates them) 3. Each DRV2605L drives one ERM coin motor using its built-in H-bridge and 123-effect waveform library 4. 74HC595 shift registers drive 16 status LEDs using only 3 GPIO pins 5. Power: USB-C 5V feeds motors…

Main components on the Haptic controller2

AP2112K-3.3ESP32-S3-WROOM-1TCA9548APWRDRV2605LDGS74HC595

Haptic controller2 bill of materials (BOM)

88 components, 24 distinct parts.

QtyPartRefs
1
AP2112K-3.3
U1
1
ESP32-S3-WROOM-1
U2
1
TCA9548APWR
U3
8
DRV2605LDGS
U4, U5, U6, U7, U8, U9, U10, U11
2
74HC595
U12, U13
1
USB_C_Receptacle_USB2.0_16P
J1
1
MOTOR1
J2
1
MOTOR4
J3
1
MOTOR3
J4
1
MOTOR2
J5
1
MOTOR0
J6
1
MOTOR6
J7
1
MOTOR5
J8
1
MOTOR7
J9
1
RESET
SW1
1
BOOT
SW2
16
LED
D1, D2, D3, D4, D5, D6, D7, D8 +8
2
10uF
C1, C4
10
1uF
C2, C3, C8, C11, C13, C15, C17, C19 +2
13
100nF
C5, C6, C7, C9, C10, C12, C14, C16 +5
Show 4 more
QtyPartRefs
2
5.1k
R1, R2
3
10k
R3, R4, R5
2
4.7k
R6, R7
16
330
R8, R9, R10, R11, R12, R13, R14, R15 +8

Haptic controller2 design files

The KiCad project lives in the rrzhang139/haptic-controller-pcb repository on GitHub; these links point at the commit this page was built from.

Haptic controller2: common questions

What microcontroller does the Haptic controller2 use?

The Haptic controller2 is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Haptic controller2 PCB?

The Haptic controller2 measures 84.3 × 96.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Haptic controller2?

88 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Haptic controller2 design files?

From the rrzhang139/haptic-controller-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Haptic controller2 design in my own project?

The repository has no license, so all rights stay with rrzhang139. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Haptic controller2 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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