HardLabs

Handset

JeremyLakeyJr·mesh-phone·hardware/handset-rev-a/generated/handset.kicad_pcb

Handset PCB layout, top view — open source ESP32 board by JeremyLakeyJr
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About the Handset PCB

Handset is an open source ESP32 PCB design by JeremyLakeyJr, published on GitHub. It is a 4-layer board measuring 66 × 142 mm, with 217 components from 116 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N16R8, from the ESP32 family. Other key parts include the TCA8418RTWR, BQ25186DLHR, SX1262IMLTRT, CC1101RGPR and MAX98357AETE+. By type, the board carries 72 capacitors, 57 resistors, 24 ICs, 19 switches, 18 connectors and 12 inductors.

It belongs with the audio, rf & radio and power & battery designs in this gallery.

From the project

OWASSO-1 DIY ESP32-S3 phone KiCad revF PCB project

Open generated/handset.kicadpro in KiCad 10. This is a new board and hierarchical schematic, not the old Rev F layout. It is incomplete, partially routed, and not ready to fabricate or power. The original Rev F project is preserved in ../rev-f/`.

Latest: SX1262 core regulator correction. The clock and RF frontend are still incomplete.

- 66 × 142 × 1.6 mm board with four copper layers, four 2.2 mm mounting holes and a 27 × 24 mm trackball opening. The extra 4 mm length prevents the mounting drills from breaking through the former 138 mm outline. - Retained ESP32-S3-WROOM-1-N16R8; PSRAM pads…

Main components on the Handset

ESP32-S3-WROOM-1-N16R8TCA8418RTWRBQ25186DLHRSX1262IMLTRTCC1101RGPRMAX98357AETE+TPS63802DLARMAX17048G+THTRC11001TTPS61023DRLRTPS62840DLCRMAX-M10S-00B-01ST25R3916B-AQETTPS2553DBVRTPD4E05U06DQARSN74AHCT125PWRSN74LVC1G17DBVRTPS63070RNMRTPS25200DRVRTUSB320LAIRWBRTLV70433DBVRTCA9536DGKR

Handset bill of materials (BOM)

217 components, 116 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1-N16R8
U1
1
TCA8418RTWR
U2
1
BQ25186DLHR
U3
1
SX1262IMLTRT
U4
1
CC1101RGPR
U5
1
MAX98357AETE+
U6
1
TPS63802DLAR
U7
1
MAX17048G+T
U8
1
HTRC11001T
U9
1
TPS61023DRLR
U10
1
TPS62840DLCR
U11
1
MAX-M10S-00B-01
U12
1
ST25R3916B-AQET
U13
1
TPS2553DBVR
U14
3
TPD4E05U06DQAR
U15, U16, U17
1
SN74AHCT125PWR
U18
1
SN74LVC1G17DBVR
U19
1
TPS63070RNMR
U20
1
TPS25200DRVR
U21
1
TUSB320LAIRWBR
U22
Show 96 more
QtyPartRefs
1
TLV70433DBVR
U23
1
TCA9536DGKR
U24
6
AO3400A
Q1, Q2, Q3, Q4, Q5, Q7
1
AO3401A
Q6
1
ABM8-27.120MHZ-B2-T
Y1
1
ABM8-26.000MHZ-10-D-1-G-T
26MHz CL10pF
Y2
1
BATTERY_POLARITY_VERIFY
J1
1
PACK_NTC_10K_B3435
J2
1
MEDIA_SPEAKER_DIFFERENTIAL
J3
1
CALL_AUDIO_FROM_MODEM_ADAPTER
J4
1
CALL_EARPIECE
J5
1
CALL_MIC
J6
1
PIM447_HARNESS_VERIFY
J7
1
MODEM_ADAPTER_3V3_LOGIC
J8
1
MODEM_POWER_ADAPTER_REQUIRED
J9
1
LF_COIL_TUNING_REQUIRED
J10
1
EXPANSION_J16
J16
1
LORA_915_ANT
J20
1
CC1101_915_ANT
J21
1
GNSS_PASSIVE_ANT
J22
1
DM3D-SF
J23
1
TSAL6400_CASE_LED
J24
1
TSOP38438_CASE_RX
J25
1
FH12A-50S-0.5SH(55)
J26
2
046701.5NRHF / 1.5A
F1, F2
1
SPH0645LM4H-1
MK1
1
1
SW1
1
2
SW2
1
3
SW3
1
4
SW4
1
5
SW5
1
6
SW6
1
7
SW7
1
8
SW8
1
9
SW9
1
10
SW10
1
11
SW11
1
12
SW12
1
13
SW13
1
14
SW14
1
15
SW15
1
16
SW16
1
MCU_BOOT
SW17
1
MCU_EN
SW18
1
POWER
SW19
1
USB4105
USB1
1
SMF5.0A / Diotec
D1
1
BAT54C,215
D2
1
XFL4020-471MEC / 0.47uH
L1
1
XFL4020-102MEC / 1uH
L2
1
XFL4020-222MEC / 2.2uH
L3
1
XFL4020-152MEC / 1.5uH
L4
4
LQW15AN12NJ00D
12nH 5%
L5, L6, L9, L10
2
LQW15AN18NJ00D
18nH 5%
L7, L8
1
BLM15HG102SN1D
1kohm @100MHz
L11
1
MLZ2012M150WT000
15uH 20%
L12
4
1uF
C1, C30, C37, C44
8
10uF
C2, C14, C20, C25, C28, C41, C43, C49
15
100nF
C3, C4, C10, C13, C15, C23, C24, C29 +7
1
2.2uF 25V X7R
C5
1
10uF 25V X5R
C6
1
4.7uF 10V X7R
C7
10
GRM155R71C104KA88D
100nF 10% X7R 16V
C8, C11, C12, C69, C70, C71, C72, C73 +2
1
GRM155R61A474KE15D
470nF 10% X5R 10V
C9
3
22uF
C21, C22, C26
2
4.7uF
C27, C48
4
2.2uF
C32, C33, C34, C35
1
10nF
C36
2
27pF C0G
C38, C39
2
10uF 10V X7R
C50, C51
3
22uF 10V X5R
C52, C53, C54
2
100nF 50V X7R
C56, C59
1
2.2uF 10V X7R
C57
2
100nF 10V X7R
C58, C60
2
GRM1555C1H150JA01D
15pF 5% C0G 50V
C61, C62
1
GRM1555C1H1R0CA01D
1pF 0.25pF C0G 50V
C63
2
GRM1555C1H1R5CA01D
1.5pF 0.25pF C0G 50V
C64, C68
1
GRM1555C1H3R3CA01D
3.3pF 0.25pF C0G 50V
C65
1
GRM1555C1H101JA01D
100pF 5% C0G 50V
C66
1
GRM1555C1H120JA01D
12pF 5% C0G 50V
C67
1
GRM155R61A105KE15D
1uF 10% X5R 10V
C74
10
10k
R1, R2, R5, R10, R12, R40, R58, R59 +2
5
4.7k
R3, R4, R7, R68, R70
12
100k
R6, R8, R13, R30, R33, R42, R47, R50 +4
1
887k 1%
R9
1
56k 1%
R11
7
33
R20, R21, R22, R23, R24, R25, R26
1
560k 1%
R31
6
100k 1%
R32, R35, R41, R61, R63, R65
1
732k 1%
R34
3
47k
R43, R44, R45
3
100
R46, R49, R56
1
47 1% 0.125W
R48
4
150 1% 0.1W
R52, R53, R54, R55
1
374k 1%
R60
1
390k 1%
R62

Handset design files

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

Handset: common questions

What microcontroller does the Handset use?

The Handset is built around the ESP32-S3-WROOM-1-N16R8, from the ESP32 family.

How big is the Handset PCB?

The Handset measures 66 × 142 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Handset?

217 components, from 116 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 Handset design files?

From the JeremyLakeyJr/mesh-phone 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 Handset design in my own project?

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

Can I test firmware for the Handset 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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