2 layers140.6 × 25.9 mm
ESP32 SmartGlass
jobitjoseph/ESP32-AI-SmartGlass
The ESP32 AI Smartglass is an innovative wearable device that blends the power of artificial intelligence with the convenience of home automation.
47 parts16
2 layers140.6 × 29.3 mm
ATOM M3
mananshAlt/Reddit_postPCB and Schematic file for reddit query
- Size
- 140.6 × 29.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 66
- Pads
- 192
- Tracks, vias
- 944, 121
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Aug 2025
- Updated
- 16 Aug 2025
Overview
ATOM M3 is an open-source printed circuit board by mananshAlt, from the mananshAlt/Reddit_post repository on GitHub. It is a 2-layer board of 140.6 × 29.3 mm with 34 parts on 66 nets, routed with 944 tracks and 121 vias.
It is built around the ESP32-S3-WROOM-1-N8, MAX98357AETE+T and LTC4065EDC#TRMPBF, with the 10118194-0001LF, AMS1117-1.8 and AMS1117-3.3 among its other parts. Its parts include 11 resistors, 6 capacitors, 2 ICs, 1 connector and 1 switch. It belongs with the ESP32 boards of this library.
Main components
7
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
MAX98357AETE+T
TQFN-16-EP(3x3)-40℃~+85℃ 2.4mA 2.5V~5.5V 3.2Wx1@4Ω 77dB 92% Automatic mute/no-noise switch、Enable/shutdown function、Filterless architecture Class D TQFN-16-EP(3x3) Audio Amplifiers ROHSMaxim Integrated (Analog Devices)Audio Amplifiers
LTC4065EDC#TRMPBF
DFN-6-EP(2x2)-40℃~+85℃ 1 120uA 3.75V~5.5V 4.2V 750mA Charging IC Lithium Battery Not supported DFN-6-EP(2x2) Battery Management ROHSAnalog DevicesBattery Management
10118194-0001LF
SMD-30℃~+80℃ 1 100V 5P Black Female Micro-B USB 2.0 SMD USB Connectors ROHSAmphenolUSB Connectors
AMS1117-1.8
SOT-223-40℃~+125℃@(Tj) 0.003%Vout 1 1.3V@(1A) 1.8V 15V 1A 72dB@(120Hz) Fixed Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsAMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SMT-0540-S-R
SMD,5x5mm-30℃~+70℃ 2.1mm 2V~4V 4kHz 5mm 5mm 78dB Electromagnetic Passive (Externally Driven) SMD,5x5mm Buzzers ROHSPUI Audio, Inc.Buzzers
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R9, R10, R13 |
| 2 | 100nf | Capacitor_SMD:C_0402_1005Metric | C20, C22 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R2, R7 |
| 2 | 220pF | Capacitor_SMD:C_0603_1608Metric | C29, C30 |
| 2 | FerriteBead_Small | Inductor_SMD:L_0805_2012Metric | FB1, FB2 |
| 1 | 0R | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 10118194-0001LF | Library:AMPHENOL_10118194-0001LF | MICRO-USB1 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 1kohhm | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C31 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | AMS1117-1.8 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | 1.8v_LDO1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | 3.3v_LDO1 |
| 1 | AP2204R-2.8 | Package_TO_SOT_SMD:SOT-89-3 | 2.8v_ldo1 |
| 1 | BOOT | Button_Switch_SMD:SW_SPST_B3U-3000P-B | BOOT(EN) |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Conn_01x24 | Connector_FFC-FPC:TE_2-1734839-4_1x24-1MP_P0.5mm_Horizontal | Camera_conn1 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1U | U1 |
| 1 | LOGO | LOGO | G*** |
| 1 | LTC4065EDC#TRMPBF | Library:DFN-6_DC | IC1 |
| 1 | MAX98357AETE+T | Library:QFN50P300X300X80-17N | MAX98357AETE+T |
| 1 | RST | Button_Switch_SMD:SW_SPST_B3U-3000P-B | SW3 |
| 1 | SMT-0540-S-R | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | BZ2 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | TP223 |
| 1 | ~ | Audio_Module:INMP441 | INMP441 |
Questions
How big is the ATOM M3 PCB?
It measures 140.6 × 29.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ATOM M3 use?
34 parts, built around the ESP32-S3-WROOM-1-N8, MAX98357AETE+T, LTC4065EDC#TRMPBF and 10118194-0001LF. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ATOM M3 KiCad files?
From the mananshAlt/Reddit_post repository on GitHub, at the commit this page was made from: the board is ATOM_M3.kicad_pcb and its schematic ATOM_M3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ATOM M3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask mananshAlt before reusing the design.
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