2 layers60 × 40 mm
Canary
offgridevices/offgrid-hardware
Open hardware from OffGrid Devices. One folder per board. CERN-OHL-S.
52 partsCERN-OHL-S-2.0
4 layers90 × 50 mm
Cryobelt
michael201110/cryobelt1- Size
- 90 × 50 mm
- Copper layers
- 4
- Thickness
- 0.8 mm
- Parts
- 100
- Nets
- 95
- Pads
- 436
- Tracks, vias
- 1,398, 177
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 22 Jul 2026
- Updated
- 23 Aug 2026
Overview
Cryobelt is an open-source printed circuit board by michael201110, from the michael201110/cryobelt repository on GitHub. It is a 4-layer board of 90 × 50 mm with 100 parts on 95 nets, routed with 1,398 tracks and 177 vias.
It is built around the ESP32-S3-MINI-1-N8, FUSB303BTMX and INA180A3IDBVR(LX), with the MAX98357AETE+T, SHT40-AD1B-R2 and TPS61089RNRR among its other parts. Its parts include 33 capacitors, 28 resistors, 9 ICs, 5 diodes and 5 switches. It belongs with the ESP32 boards of this library.
Main components
12
ESP32-S3-MINI-1-N8
SMD-104.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3FN8 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
FUSB303BTMX
X2-QFN-12(1.6x1.6)-40℃~+85℃ 2.85V~5.5V 356uA 5uA Controller USB 2.0、USB 3.1 X2-QFN-12(1.6x1.6) USB Converters ROHSonsemiUSB Converters
INA180A3IDBVR(LX)
SOT-23-5-200mV~30V -40℃~+125℃ 1 100V/V 100dB 100uV 150kHz 175uA 1uV/℃ 2.7V~5.5V 6V/us 75uA 8mA Bidirectional detection、Zero drift / auto-zero ±30V SOT-23-5 Current Sense Amplifiers ROHSlingxingicCurrent Sense Amplifiers
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
SHT40-AD1B-R2
DFN-4-EP(1.5x1.5)Temperature And Humidity SensorSensirion
TPS61089RNRR
VQFN-11-HR-EP(2x2.5)-40℃~+125℃@(TJ) 1 1uA 2.2MHz 2.7V~12V 4.5V~12.6V 7A Adjustable Boost Boost Built-in Yes VQFN-11-HR-EP(2x2.5) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TPS63001DRC
VSON-10-EP(3x3)-40℃~+85℃@(TA) 1 1.5MHz 1.8V~5.5V 3.3V 50uA Buck-Boost Buck-Boost Built-in Fixed Yes VSON-10-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
BQ25895RTW
WQFN-24-EP(4x4)-40℃~+85℃ 1 12uA 3.9V~14V 4.608V 5A Charging IC I2C Lithium Battery Support Support QFN-24-EP(4x4) Battery Management ROHSTexas InstrumentsBattery Management
D3V3XA4B10LP-7(ES)
DFN2510-10L-40℃~+125℃ 0.18pF 1nA 3.3V 7V 8V IEC 61000-4-2 TVS DFN2510-10L ESD and Surge Protection (TVS/ESD) ROHSElecSuperUncategorised
CL21A226MAQNNNE
080522uF 25V X5R ±20% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
CC0603KRX7R9BB104
0603100nF 50V X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMTFEXU0420S2R2MBS
SMD,4.1x4.1mm2.2uH 23mΩ 8A 8A ±20% SMD,4.1x4.1mm Molding Power Inductors ROHScjiangPower Inductors
Parts
100| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 10uF | Capacitor_SMD:C_0603_1608Metric | C6, C8, C16, C21, C24, C25, C26, C27, C28, C29, C33 |
| 5 | 100k | Resistor_SMD:R_0603_1608Metric | R9, R10, R12, R18, R28 |
| 5 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C7, C20, C32 |
| 5 | 22uF | Capacitor_SMD:C_0805_2012Metric | C10, C11, C13, C17, C18 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C9, C12, C15, C22 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R17, R24 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad_TopBottom | H1, H2, H3, H4 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2, TP3, TP4 |
| 3 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C2, C4, C5 |
| 3 | 100R | Resistor_SMD:R_0603_1608Metric | R5, R19, R20 |
| 3 | 2.2k | Resistor_SMD:R_0603_1608Metric | R3, R4, R21 |
| 3 | 2.2uH | Inductor_SMD:L_Changjiang_FNR4030S | L1, L2, L3 |
| 3 | WS2812B-2427-V6 | Cryobelt:WS2812B-2427-V6_Rotated180 | D1, D2, D3 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C30, C31 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R26, R27 |
| 2 | 22R | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 300k | Resistor_SMD:R_0603_1608Metric | R11, R13 |
| 2 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1, Q3 |
| 1 | 0.01R/1% | Resistor_SMD:R_1206_3216Metric | R25 |
| 1 | 107k/1% | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 17.4k | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric | C14 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | 30k | Resistor_SMD:R_0603_1608Metric | R22 |
| 1 | 4.7nF | Capacitor_SMD:C_0603_1608Metric | C19 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C23 |
| 1 | 5.23k | Resistor_SMD:R_0603_1608Metric | R23 |
| 1 | 634k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 953k/1% | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | BQ25895RTW | Cryobelt:Texas_RTW_WQFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm_ThermalVias | U7 |
| 1 | Battery | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J3 |
| 1 | Boot | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW2 |
| 1 | Charge | Connector_USB:USB_C_Receptacle_GCT_USB4110 | J2 |
| 1 | Conn_01x03_Pin | Connector_JST:JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J4 |
| 1 | D3V3XA4B10LP | Package_DFN_QFN:Diodes_UDFN-10_1x2.5mm_P0.5mm | U6 |
| 1 | Down | Cryobelt:PG1316S | SW3 |
| 1 | ESP32-S3-MINI-1 | Cryobelt:ESP32-S3-MINI-1 | U2 |
| 1 | FUSB303BTMX | Package_DFN_QFN:Texas_X2QFN-12_1.6x1.6mm_P0.4mm | U4 |
| 1 | INA180A3 | Package_TO_SOT_SMD:SOT-23-5 | U9 |
| 1 | MAX98357A | Package_DFN_QFN:TQFN-16-1EP_3x3mm_P0.5mm_EP1.23x1.23mm | U3 |
| 1 | NCU18XH103F60RB | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | Reset | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW1 |
| 1 | SHT4x | Sensor_Humidity:Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | U1 |
| 1 | SS14 | Diode_SMD:D_SMA | D5 |
| 1 | STAT | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | Speaker | Connector_Wire:SolderWire-0.1sqmm_1x02_P3.6mm_D0.4mm_OD1mm | J1 |
| 1 | TPS61089 | Package_DFN_QFN:Texas_VQFN-RNR0011A-11 | U5 |
| 1 | TPS63001 | Package_SON:Texas_DRC0010J_ThermalVias | U8 |
| 1 | Up | Cryobelt:PG1316S | SW5 |
| 1 | User | Cryobelt:PG1316S | SW4 |
Questions
How big is the Cryobelt PCB?
It measures 90 × 50 mm and has 4 copper layers, 0.8 mm thick.
What parts does the Cryobelt use?
100 parts, built around the ESP32-S3-MINI-1-N8, FUSB303BTMX, INA180A3IDBVR(LX) and MAX98357AETE+T. 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 Cryobelt KiCad files?
From the michael201110/cryobelt repository on GitHub, at the commit this page was made from: the board is cryobelt.kicad_pcb and its schematic ESP32-S3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cryobelt design in my own project?
Its repository states no licence, so its author keeps all rights: ask michael201110 before reusing the design.
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