2 layers141 × 66.7 mm
2 layers141 × 56.9 mm
SenseEHajo
ehajo/SenseHaJo5Software for SenseHaJo Streamproject
- Size
- 141 × 56.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 119
- Nets
- 77
- Pads
- 337
- Tracks, vias
- 876, 221
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 27 Jun 2017
- Updated
- 4 Mar 2025
Overview
SenseEHajo is an open-source printed circuit board by ehajo, from the ehajo/SenseHaJo repository on GitHub. It is a 2-layer board of 141 × 56.9 mm with 119 parts on 77 nets, routed with 876 tracks and 221 vias.
It is built around the 74LVC1G125, ESP32-WROOM-32 and HLK-PM01, with the MCP3221A5-E, MOC3043M and 74LVC1G10DW among its other parts. Its parts include 36 resistors, 23 capacitors, 13 ICs, 9 connectors and 6 diodes. It belongs with the ESP32 boards of this library.
Main components
11
74LVC1G125
SOT-353SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core ElecBuffers, Drivers, Receivers, Transceivers
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
HLK-PM01
DIP,34x24mm0.1W 100mVp-p 15mm 20mm 34mm 3W 3kV 5V 700mA 73% 85VAC~265VAC AC-DC Short Circuit Protection、Over Current Protection、Fault self-recovery ±0.2% 插件,34x20mm AC-DC Power Modules ROHSHI-LINKAC-DC Power Modules
MCP3221A5-E
SOT23-5Low-Power 12-Bit A/D Converter with I2C Interface, A5 AddressMicrochip TechnologyUncategorised
MOC3043M
DIP-6-55℃~+110℃ 1 1.5V 1000V/us 100mA 330mW 400V 5kV 6 60mA TRIAC Yes DIP-6 Triac, SCR Output Optoisolators ROHSAOTETriac, SCR Output Optoisolators
74LVC1G10DW
SOT-363-40℃~+125℃ 1 1.2V、1.9V、2.3V、2.4V、3.8V 1.65V~5.5V 1.7V~2V 3 3.6ns@5V,50pF 300mV、400mV、450mV、550mV 32mA 32mA 40uA 700mV~800mV 74LVC Series NAND Gate Overvoltage-tolerant input、Local shutdown mode Push-pull SOT-363 Logic Gates ROHSDiodes IncorporatedLogic Gates
K814P
DIP-4-40℃~+100℃ 1 1.25V 20% 250mW 300% 300mV@10mA,1mA 3us 4.7us 50mA 5kV 60mA 70V AC,DC Integrated anti-parallel LED Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSVishay IntertechnologyTransistor, Photovoltaic Output Optoisolators
LM1117-3.3
SOT-2231 1.3V@(1000mA) 15V 1A 2mA 3.3V Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHShongjiachengUncategorised
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
PMEG4010EGWX
SOD-1231 Independent 100uA@40V 1A 40V 640mV@1A 9A SOD-123 Schottky Diodes ROHSNexperiaSchottky Diodes
README
README.mdSenseHaJo
Alle Infos über das SenseHaJo Projekt.
Die Youtube-Livestream Playlist befindet sich hier: Playlist on Youtube
Livestreams immer hier auf Twitch: Link zu Twitch
Parts
119| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R12, R13, R14, R21, R22, R24, R25, R26, R27, R28, R30, R31, R32, R33, R34 +4 |
| 15 | 100nF / 10V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C4, C5, C6, C7, C8, C14, C15, C16, C17, C19, C25, C26, C27, C28 |
| 10 | IO32 | TestPoint:TestPoint_Pad_D2.0mm | IO2, IO15, IO19, IO21, IO32, IO33, IO34, IO35, S_VN1, S_VP1 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R20, R38, R39 |
| 3 | 74LVC1G125 | SC-74A_SOT753:SC-74A | IC3, IC5, IC6 |
| 3 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D3, D6, D7 |
| 2 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6, R7 |
| 2 | 150R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R11 |
| 2 | 1uF / 10V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3 |
| 2 | 330R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R16, R18 |
| 2 | 360R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R15, R17 |
| 2 | Ferrite_Bead | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | FB1, FB2 |
| 2 | Jumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2 |
| 2 | MOC3043M | Package_DIP:DIP-6_W7.62mm | U3, U4 |
| 2 | QJ8025 | Package_TO_SOT_SMD:TO-263-3_TabPin2 | T1, T2 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2 |
| 1 | 10uF/25V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13 |
| 1 | 1uF/25V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 1 | 0.5A / 230VAC | Capacitor_THT:C_Rect_L7.0mm_W4.5mm_P5.00mm | F1 |
| 1 | 100R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R29 |
| 1 | 10k (DNP) | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 10uF / 10V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C18 |
| 1 | 10uF/10V | Capacitor_SMD:CP_Elec_4x4.5 | C9 |
| 1 | 10uH | Inductor_SMD:L_Wuerth_MAPI-3015 | L1 |
| 1 | 12V | TestPoint:TestPoint_Pad_D2.0mm | TP8 |
| 1 | 1N4006 | Diode_THT:D_DO-201AD_P15.24mm_Horizontal | D4 |
| 1 | 1k8 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 1uF/25V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | 2k2 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D2.0mm | TP5 |
| 1 | 43.2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23 |
| 1 | 47uF/10V | Capacitor_SMD:CP_Elec_5x5.3 | C11 |
| 1 | 5V | TestPoint:TestPoint_Pad_D2.0mm | TP6 |
| 1 | 74LVC1G10 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | IC7 |
| 1 | AP3012 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | IC1 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J6 |
| 1 | D_Schottky | Diode_SMD:D_SOD-523 | D2 |
| 1 | ESP32-WROOM-32 | ESP32_Handsolder:ESP32-WROOM-32_HandSolder | U1 |
| 1 | HLK-PM01 | Converter_ACDC:Converter_ACDC_HiLink_HLK-PMxx | PS1 |
| 1 | Heizung L | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad_TopBottom | J4 |
| 1 | I2C_DISP_SCL_3V3 | TestPoint:TestPoint_Pad_D2.0mm | TP4 |
| 1 | I2C_DISP_SDA_3V3 | TestPoint:TestPoint_Pad_D2.0mm | TP3 |
| 1 | INA350ABS | Package_TO_SOT_SMD:SOT-23-8_Handsoldering | IC8 |
| 1 | K814P | Package_DIP:DIP-4_W7.62mm | IC4 |
| 1 | L | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad_TopBottom | J7 |
| 1 | LM1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U6 |
| 1 | MACHINE_SW2 | Button_Switch_THT:SW_PUSH_6mm | SW3 |
| 1 | MACHINE_SW3 | Button_Switch_THT:SW_PUSH_6mm | SW4 |
| 1 | MAINS Halvewaves | TestPoint:TestPoint_Pad_D2.0mm | TP7 |
| 1 | MCP3221 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | IC2 |
| 1 | MCP6001-OT | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | N | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad_TopBottom | J8 |
| 1 | PMEG4010EGWX | Diode_SMD:D_SOD-123 | D5 |
| 1 | Prog | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J9 |
| 1 | Pumpe L | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad_TopBottom | J5 |
| 1 | REED | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | RTC ( DS3231) | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | SW1 ( Boot ) | Button_Switch_THT:SW_PUSH_6mm | SW2 |
| 1 | Varistor 10D561 | Varistor:RV_Disc_D9mm_W5.2mm_P5mm | RV1 |
More from ehajo/SenseHaJo
1Similar boards
- 2 layers141 × 56.9 mm
- 2 layers54.1 × 82.3 mm
- 2 layers76 × 66 mm
Radiator controller
Plokkke/sauter-marapi-esphome
ESPHome / Home Assistant pilot wire (fil pilote) controller for the Sauter Marapi tactile towel radiator — KiCad PCB, reverse engineering notes. Study phase, untested.
19 parts - 2 layers79.7 × 62.6 mm
OpenReflow
CarlosGS/OpenReflow
Simple reflow oven controller that is configurable from a phone
39 parts25GPL-3.0 - 4 layers70 × 60 mm
Tanklevel
Th3Link/tanklevel
This project provides a solution for measuring the liquid level in tanks, such as rainwater tanks, using the TL-136 pressure sensor.
80 parts4CERN-OHL-S-2.0 - 2 layers176 × 100 mm
SmartDesk v1p0
daverowntree/SmartDesk
I open sourced a design I made a few years back for a non-paying client. Use it as you see fit!
190 parts - 2 layers59.7 × 79 mm
- 4 layers180 × 120 mm
MG ZS V2
damienmaguire/MG-EV-Inverter
Reverse engineering of the drive motor and inverter used in MG Electric Vehicles
177 parts17GPL-3.0
Questions
How big is the SenseEHajo PCB?
It measures 141 × 56.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SenseEHajo use?
119 parts, built around the 74LVC1G125, ESP32-WROOM-32, HLK-PM01 and MCP3221A5-E. 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 SenseEHajo KiCad files?
From the ehajo/SenseHaJo repository on GitHub, at the commit this page was made from: the board is mkII-Mathias/full feature/SenseEHajo.kicad_pcb and its schematic mkII-Mathias/full feature/SenseEHajo.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SenseEHajo design in my own project?
Its repository states no licence, so its author keeps all rights: ask ehajo before reusing the design.