2 layers100 × 103.5 mm
2 layers100 × 103.5 mm
Hstat
mckay27/hstat- Size
- 100 × 103.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 108
- Nets
- 111
- Pads
- 406
- Tracks, vias
- 937, 340
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Feb 2025
- Updated
- 3 Apr 2026
Overview
Hstat is an open-source printed circuit board by mckay27, from the mckay27/hstat repository on GitHub. It is a 2-layer board of 100 × 103.5 mm with 108 parts on 111 nets, routed with 937 tracks and 340 vias.
It is built around the ESP32-S3-WROOM-2-N32R16V, DS18B20Z and LTV-217-B-G, with the AP7361C-33E, BQ24075RGT and DW01A among its other parts. Its parts include 22 resistors, 16 capacitors, 14 ICs, 10 diodes and 5 transistors. It belongs with the ESP32 boards of this library.
Main components
12
ESP32-S3-WROOM-2-N32R16V
SMD-103.5dBm -40℃~+65℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3R16V Integrated Bluetooth function、Support USB interface On-board PCB Antenna UART、SDIO、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
DS18B20Z
SOIC-8-55℃~+125℃ 12bit 2.5V~5.5V 750ms Single-bus ±0.4℃ SOIC-8 Temperature Sensors ROHSUMWTemperature Sensors
LTV-217-B-G
SOP-4-175mil-55℃~+110℃ 1 1.2V 200mW 2us 3.75kV 3us 400mV@8mA,2.4mA 50% 50mA 50mA 600% 6V 70V DC Phototransistor SOP-4-175mil Transistor, Photovoltaic Output Optoisolators ROHSLite-OnTransistor, Photovoltaic Output Optoisolators
AP7361C-33E
SOT-223-40℃~+85℃@(Ta) 1 1A 3.3V 340mV@(1A) 6V 75dB@(1kHz) 80uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BQ24075RGT
QFN-16-EP(3x3)-40℃~+125℃ 1.5A 4.2V 4.35V~6.4V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
DW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery ManagementFS8205A
SOT-23-6-55℃~+150℃ 1.2V 1.5W 2 N-Channel 20V 31.5mΩ@2.5V 466pF 5.7nC@4.5V 58pF 65pF 6A SOT-23-6 MOSFETs ROHSTECH PUBLICMOSFETs
MAX17048G+T10
DFN-8-EP(2x2)-40℃~+85℃ 1 2.5V~4.5V 3uA I2C Lithium Battery Not supported Not supported DFN-8-EP(2x2) Battery Management ROHSMaxim Integrated (Analog Devices)Battery ManagementPCF8563T/5,518-CN
SOP-8SOP-8 Real Time Clocks ROHSChipNoboReal Time ClocksSRV05-4-P-T7
SOT-23-612V 1A@8/20us 3.5pF 500W@8/20us 5V 5uA 6V ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSPROTEKESD And Surge Protection (TVS/ESD)
BC817-40
SOT-23-65℃~+150℃ 1 NPN 100MHz 100nA 250 345mW 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSNexperiaBipolar (BJT)
H8VHD3B
SOD-323-55℃~+125℃ 100nA 11.5V 120pF 20A@8/20us 25V 500W@8/20us 8V Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 Single-channel SOD-323 ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
Parts
108| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100nF | Capacitor_SMD:C_0603_1608Metric | C2, C5, C13, C14, C15, C16 |
| 6 | M7 | Diode_SMD:D_SMA | D2, D3, D4, D5, D6, D7 |
| 4 | 0R | Resistor_SMD:R_0603_1608Metric | R2, R3, R19, R20 |
| 4 | 120R | Resistor_SMD:R_0603_1608Metric | R16, R18, R21, R22 |
| 4 | 18650 | MH_connectors:1043-keystone-18650 | BT1, BT2, BT3, BT4 |
| 4 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C8, C9, C11, C12 |
| 4 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q2, Q3, Q4, Q5 |
| 4 | D_TVS | Diode_SMD:D_SOD-323 | D1, D8, D9, D10 |
| 4 | LTV-217 | Package_SO:SOP-4_4.4x2.6mm_P1.27mm | U6, U9, U11, U14 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_ISO7380 | H1, H2, H3, H4 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C6, C7 |
| 3 | FerriteBead_Small | Inductor_SMD:L_0603_1608Metric | FB1, FB2, FB3 |
| 3 | IO3 | TestPoint:TestPoint_Pad_2.0x2.0mm | TP3, TP4, TP5 |
| 2 | 100R | Resistor_SMD:R_0603_1608Metric | R10, R14 |
| 2 | 10A | Fuse:Fuseholder_Clip-5x20mm_Littelfuse_111_Lateral_P18.80x5.00mm_D1.17mm_Horizontal | F2, F3 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R6, R15 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R5, R13 |
| 2 | 22uF | Capacitor_SMD:C_0603_1608Metric | C3, C4 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R11, R12 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R4, R7 |
| 2 | DS18B20Z | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U12, U13 |
| 2 | Relay_SPST_Latching_2coil | MH_switches:RELAY_G6CK-1117P-US_OMR | K1, K2 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW1, SW2 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 103AT | Resistor_SMD:R_0603_1608Metric | TH1 |
| 1 | 230mA | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP3 |
| 1 | 2A | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | 3.9k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 32.768khz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | 4.5/20pF | Capacitor_SMD:C_Trimmer_Voltronics_JZ | C10 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 910R | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 930mA | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | ALERT | TestPoint:TestPoint_Pad_2.0x2.0mm | TP9 |
| 1 | AP7361C-33E | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U7 |
| 1 | BQ24075RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U2 |
| 1 | CHG_CURR | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1 |
| 1 | CLK_OUT | TestPoint:TestPoint_Loop_D2.54mm_Drill1.5mm_Beaded | TP8 |
| 1 | CR2032 | Battery:BatteryHolder_Keystone_1058_1x2032 | BT5 |
| 1 | Conn_02x14_Top_Bottom | Connector_PinSocket_2.54mm:PinSocket_2x14_P2.54mm_Vertical_SMD | J3 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | EN1 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP1 |
| 1 | EN2 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP2 |
| 1 | ESP32-S3-WROOM-2 | RF_Module:ESP32-S3-WROOM-2 | U4 |
| 1 | EXT_TEMP | MH_connectors:PHOENIX_1771033 | J5 |
| 1 | FS8205A | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 1 | MAX17048G_T10 | MH_ics:SON50P200X200X80-9N | U10 |
| 1 | OUT_1 | MH_connectors:CONN2_2604-1102_WAG | J2 |
| 1 | OUT_2 | MH_connectors:CONN2_2604-1102_WAG | J4 |
| 1 | PCF8563T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U8 |
| 1 | RXD | TestPoint:TestPoint_Pad_2.0x2.0mm | TP6 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | SW_SPDT | Button_Switch_THT:SW_E-Switch_EG1224_SPDT_Angled | SW3 |
| 1 | TXD | TestPoint:TestPoint_Pad_2.0x2.0mm | TP7 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J1 |
The 106 most common of 108 parts.
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Questions
How big is the Hstat PCB?
It measures 100 × 103.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hstat use?
108 parts, built around the ESP32-S3-WROOM-2-N32R16V, DS18B20Z, LTV-217-B-G and AP7361C-33E. 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 Hstat KiCad files?
From the mckay27/hstat repository on GitHub, at the commit this page was made from: the board is HW/main_board/main_board.kicad_pcb and its schematic HW/display_board/display_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hstat design in my own project?
Its repository states no licence, so its author keeps all rights: ask mckay27 before reusing the design.