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Merged

earlynerd·ELRS-haptics·hardware/verification/routing-v08/merged.kicad_pcb

Merged PCB layout, top view — open source ESP32 board by earlynerd

About the Merged PCB

Merged is an open source ESP32 PCB design by earlynerd, published on GitHub. It is a 4-layer board measuring 21 × 55.9 mm, with 261 components from 52 distinct parts.

Its main chip is the ESP32-C6-MINI-1, from the ESP32 family. Other key parts include the DRV2625YFFR, BQ25186DLHR, TPS63802DLAR, TUSB320LAIRWBR and TPD2EUSB30DRTR. By type, the board carries 93 resistors, 74 capacitors, 43 connectors, 25 ICs, 8 modules and 8 fuses.

From the project

Open main/main.kicadpro and satellite/satellite.kicadpro in KiCad 10.

Open main/main.kicadpro and satellite/satellite.kicadpro in KiCad 10.

- main/: one controller daughterboard PCBA; its haptic pod is a separate universal board. - satellite/: one universal PCBA, built eight times per wrist. JP1 selects normal or end-of-chain operation. - HapticBracelet.kicadsym, HapticBracelet.pretty/: shared libraries referenced by both projects. - panel/: future derived manufacturing panel, never the source for board edits. - verification/project-split/: current schematic PDFs, previews and check reports. - archive/combined-project/: superseded eight-island project…

Main components on the Merged

ESP32-C6-MINI-1DRV2625YFFRBQ25186DLHRTPS63802DLARTUSB320LAIRWBRTPD2EUSB30DRTRTPS2553DBVRTS5A3159DBVRM2003FC1AETPS22918DBVR

Merged bill of materials (BOM)

261 components, 52 distinct parts.

QtyPartRefs
1
ESP32-C6-MINI-1
U1
8
DRV2625YFFR
DRV2625
Texas Instruments
U3, U4, U5, U6, U7, U8, U9, U10
1
BQ25186DLHR
BQ25186DLH
Texas Instruments
U11
1
TPS63802DLAR
TPS63802DLA
Texas Instruments
U12
1
TUSB320LAIRWBR
TUSB320LAIRWB
Texas Instruments
U13
2
TPD2EUSB30DRTR
TPD2EUSB30
Texas Instruments
U14, U15
1
TPS2553DBVR
TPS2553DBV
Texas Instruments
U16
1
TS5A3159DBVR
TS5A3159DBV
Texas Instruments
U17
8
M2003FC1AE
Nuvoton
U18, U19, U20, U21, U22, U23, U24, U25
1
TPS22918DBVR
TPS22918DBV
Texas Instruments
U26
8
VLV041235L
Vybronics
M1, M2, M3, M4, M5, M6, M7, M8
5
2N7002
Q1, Q2, Q3, Q4, Q5
1
ESP UART / BOOT / RESET
J1
1
USB4105-GF-A
GCT
J2
1
VBAT BUS + NTC
J3
8
CHAIN IN
J100, J104, J108, J112, J116, J120, J124, J128
8
CHAIN OUT
J101, J105, J109, J113, J117, J121, J125, J129
8
ICE / INITIAL FLASH
J102, J106, J110, J114, J118, J122, J126, J130
8
NTC (optional)
J103, J107, J111, J115, J119, J123, J127, J131
8
PROTECTED CELL 90mAh
J200, J201, J202, J203, J204, J205, J206, J207
Show 32 more
QtyPartRefs
8
0467.250NR
250mA FAST
Littelfuse
F100, F101, F102, F103, F104, F105, F106, F107
1
TL3305AF160QG
ESP RESET
E-Switch
SW1
1
TL3305AF160QG
ESP BOOT
E-Switch
SW2
1
EVQPUJ02K
WAKE / SHIP
Panasonic
SW3
1
LTST-C19HE1WT
Lite-On
D1
1
DFE201612E-R47M=P2
0.47uH
Murata
L1
11
1u
C1, C7, C10, C13, C16, C19, C22, C25 +3
26
100n
C2, C5, C6, C8, C9, C11, C12, C14 +18
9
10u
C3, C101, C111, C121, C131, C141, C151, C161 +1
2
TUNE / DNP
C29, C30
3
1u 10V
C32, C34, C36
1
100n 10V
C33
3
10u 10V
C35, C37, C40
2
22u 10V
C38, C39
1
4.7n 25V
C42
8
10n
C102, C112, C122, C132, C142, C152, C162, C172
8
22u 10V X5R
C103, C113, C123, C133, C143, C153, C163, C173
18
4.7k
R1, R2, R8, R9, R10, R11, R12, R13 +10
7
10k
R3, R4, R5, R6, R27, R36, R37
29
100k
R7, R30, R31, R32, R33, R34, R38, R39 +21
2
22
R24, R25
1
887k 1%
R26
1
62k 1%
R28
1
43k 1%
R29
1
1M
R35
1
511k 1%
R40
1
91k 1%
R41
9
33
R42, R101, R111, R121, R131, R141, R151, R161 +1
2
100
R44, R46
3
2.2k
R47, R49, R51
9
0
R53, R100, R110, R120, R130, R140, R150, R160 +1
8
10k 1%
R105, R115, R125, R135, R145, R155, R165, R175

Merged design files

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

Merged: common questions

What microcontroller does the Merged use?

The Merged is built around the ESP32-C6-MINI-1, from the ESP32 family.

How big is the Merged PCB?

The Merged measures 21 × 55.9 mm, has 4 copper layers and is 0.8 mm thick.

How many components are on the Merged?

261 components, from 52 distinct parts. The full bill of materials is listed on this page.

Where can I download the Merged design files?

From the earlynerd/ELRS-haptics repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Merged design in my own project?

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

Can I test firmware for the Merged 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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