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Tokay lite

maxlab-io·tokay-lite-pcb·ai-camera-rev3.2/ai-camera-rev3.2.kicad_pcb

Tokay lite PCB layout, top view — open source ESP32 board by maxlab-io
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About the Tokay lite PCB

Tokay lite is an open source ESP32 PCB design by maxlab-io, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 70 × 70 mm, with 146 components from 38 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N16R8, from the ESP32 family. Other key parts include the TP4057-42-SOT26-R, XC6206-2.8V, PCF85063AT/AAZ, SN74LVC1G373DBVR and SY8089AAAC. By type, the board carries 57 capacitors, 33 resistors, 18 diodes, 12 ICs, 10 transistors and 6 connectors.

It belongs with the dev boards & breakouts and power & battery designs in this gallery, and the repository also holds 4 earlier revisions of it.

From the project

Tokay AI Camera - ESP32 camera development board

Tokay Lite is the ESP32 camera development board ideal for low-power image processing applications on the edge.

Tokay Lite can be used as standalone devkit to aid developers with a convinient tool or be embedded in the bigger system to augument it with the vision and image processing data.

ESP32-S3 chip compatible with TensorFlow Lite, enabling AI right in the device. OV2640 camera sensor delivering 15 fps @ 2MP. Ultra-low power design: programmable external RTC controls the entire power distribution, allowing the device to consume microamps during sleep. Motion detection with wake-up…

Tokay lite, from the project README
From the project README

Main components on the Tokay lite

TP4057-42-SOT26-RXC6206-2.8VPCF85063AT/AAZSN74LVC1G373DBVRSY8089AAACAS312RT9166-12GVLAP1511BESP32-S3-WROOM-1-N16R8MT9284-28JLTR-303ALS-01

Tokay lite bill of materials (BOM)

146 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TP4057-42-SOT26-R
TOPPOWER
U1
2
XC6206-2.8V
YONGYUTAI
U2, U7
1
PCF85063AT/AAZ
PCF85063AT
NXP Semiconductors
U3
1
SN74LVC1G373DBVR
TI_SN74LVC1G373DBVR
Texas Instruments
U4
1
SY8089AAAC
Silergy
U5
1
AS312
PIR_AS312
Senba Sensing
U6
1
RT9166-12GVL
Richtek Tech
U8
1
AP1511B
UMW
U9
1
ESP32-S3-WROOM-1-N16R8
Espressif
U10
1
MT9284-28J
AEROSEMI
U11
1
LTR-303ALS-01
Lite-On
U12
6
2N7002
JCET
Q1, Q2, Q5, Q7, Q9, Q10
4
AO3401A
Alpha & Omega Semiconductor Inc.
Q3, Q4, Q6, Q8
1
Q13FC1350000400
32.768kHz_Q13FC1350000400
Seiko Epson
Y1
1
C47647
Conn-01x02_P2mm_NONAME_JST-PH_C47647
BOOMELE
J1
1
TYPE-C-31-M-12
Korean Hroparts
J2
1
MAXLAB
J3
1
B-2100S20P-B110
Conn-02x10_P2.54mm_B-2100S20P-B110
Ckmtw
J4
1
10114829-10102LF
Conn-01x02_P1.25mm_10114829-10102LF
Amphenol ICC (FCI)
J5
1
AFC01-S24FCC-00
Conn_01x24_FFC_0.5mm_AFC01-S24FCC-00
JUSHUO
J6
Show 18 more
QtyPartRefs
2
K2-1102AQ-N4CW-01
SW_PB_90deg_K2-1102AQ-H4CW-01
Korean Hroparts
SW1, SW4
2
TS-1187A-B-A-B
SW_PB_TS-1187A-B-A-B
XKB Connectivity
SW2, SW3
2
KT-0603R
0603_RED_KT-0603R
Hubei KENTO
D1, D7
1
19-217/GHC-YR1S2/3T
0603_GREEN_19-217/GHC-YR1S2/3T
Everlight
D2
3
BSD5C051L
SOD-523_BSD5C051L
BORN
D3, D4, D5
2
B5819W SL
B5819W-SL_SOD-123
Jiangsu Changjing Electronics Technology
D6, D8
10
E6C0603IRAC1UDA
0603_IR_850nm_E6C0603IRAC1UDA
EKINGLUX
D9, D10, D11, D12, D13, D14, D15, D16 +2
3
BLM21PG221SN1D
FB_2A_0805_220R@100MHz_BLM21PG221SN1D
Murata Electronics
L1, L2, L4
2
SWPA4030S100MT
10u_1.5A_4x4mm_SWPA4030S100MT
Sunlord
L3, L5
7
TAJB107K006RNJ
100u_CASE-B-3528_TAJB107K006RNJ
Kyocera AVX
C1, C11, C12, C25, C38, C39, C40
48
CL05A105KA5NQNC
10u_0402_CL05A105KA5NQNC
Samsung
C2, C3, C4, C5, C6, C7, C8, C9 +40
2
0402CG220J500NT
22p_0402_0402CG220J500NT
FH
C17, C48
3
0402WGD9763TCE
976k_0402_0402WGD9763TCE
UNI-ROYAL
R1, R2, R23
13
0402WGD2153TCE
215k_0402_0402WGD2153TCE
UNI-ROYAL
R3, R13, R15, R16, R17, R18, R19, R21 +5
3
0402WGF1001TCE
1k_0402_0402WGF1001TCE
UNI-ROYAL
R4, R5, R28
11
0402WGF1002TCE
10k_0402_0402WGF1002TCE
UNI-ROYAL
R6, R7, R10, R11, R12, R14, R20, R26 +3
2
0603WAF5101T5E
5.1k_0603_0603WAF5101T5E
UNI-ROYAL
R8, R9
1
0805W8F243KT5E
2.43R_0805_0805W8F243KT5E
UNI-ROYAL
R33

Tokay lite design files

The KiCad project lives in the maxlab-io/tokay-lite-pcb repository on GitHub; these links point at the commit this page was built from.

Tokay lite: common questions

What microcontroller does the Tokay lite use?

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

How big is the Tokay lite PCB?

The Tokay lite measures 70 × 70 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Tokay lite?

146 components, from 38 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 Tokay lite design files?

From the maxlab-io/tokay-lite-pcb 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 Tokay lite design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which maxlab-io chose for the repository.

Can I test firmware for the Tokay lite 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.

Earlier revisions in the repo: ai-camera-rev3.1, ai-camera-rev3, ai-camera-rev2, ai-camera

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