

Sette270ControlHW
Upgarde for the sette270 adding a weight sensor and an esp32
- Size
- 94.3 × 35.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 54
- Pads
- 176
- Tracks, vias
- 311, 36
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 24 Jun 2023
- Updated
- 24 Jun 2023
Overview
Sette270ControlHW is an open-source printed circuit board by riyadh144, from the riyadh144/Sette270HW repository on GitHub. It is a 2-layer board of 94.3 × 35.7 mm with 55 parts on 54 nets, routed with 311 tracks and 36 vias.
It is built around the HX711 and MMBTA92. Its parts include 22 resistors, 8 capacitors, 7 switches, 4 diodes and 3 ICs. It belongs with the ESP32 boards of this library.
Main components
2HX711
SOP-16-40℃~+85℃ 1.4mA 10Hz、80Hz 1MHz~20MHz、11.0592MHz 2 2.6V~5.5V 20mV、40mV、80mV 24 Built-in External、Built-in SPI Support Yes SOP-16 Analog to Digital Converters (ADC) ROHSAvia SemiconAnalog To Digital Converters (ADC)MMBTA92
SOT-23-55℃~+150℃ 1 PNP 100nA 200mV 300V 350mW 500mA 50MHz 5V 60 PNP SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdThis is the PCB for the Sette270, It uses an ESP32 as the brains, and HX711 for the weight and some i2c IO expanssion It is functional but I would do a couple changes before the next itteration like adding a 5V stable reference voltage
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 10K | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R6, R7, R8, R9, R10, R11, R12, R17, R18, R19, R20, R21, R22 |
| 7 | SW_Push | Button_Switch_SMD:SW_SPST_EVQQ2 | SW1, SW2, SW3, SW4, SW5, SW6, SW7 |
| 5 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3, C4, C5, C6 |
| 4 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R14, R15, R16 |
| 4 | LED | LED_THT:LED_D2.0mm_W4.8mm_H2.5mm_FlatTop | D1, D2, D3, D4 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C7, C8 |
| 2 | 100 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 1 | 20K | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R4 |
| 1 | 3.3uH | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | L1 |
| 1 | 4PinPowerControl | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | 8.2K | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3 |
| 1 | Conn_01x02 | Connector_PinHeader_1.00mm:PinHeader_1x02_P1.00mm_Vertical | J2 |
| 1 | Conn_01x05_Female | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1 |
| 1 | HX711 | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | MMBTA92 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | MOUDLE-SEEEDUINO-XIAO-ESP32S3 | ESP32S3:MOUDLE14P-SMD-2.54-21X17.8MM | U2 |
| 1 | SSD1306 | SSD1306:SSD1306-0.91-OLED-4pin-128x32 | Brd1 |
| 1 | TCA9548APWR | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U3 |
Questions
How big is the Sette270ControlHW PCB?
It measures 94.3 × 35.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sette270ControlHW use?
55 parts, built around the HX711 and MMBTA92. 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 Sette270ControlHW KiCad files?
From the riyadh144/Sette270HW repository on GitHub, at the commit this page was made from: the board is Sette270ControlHW.kicad_pcb and its schematic Sette270ControlHW.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sette270ControlHW design in my own project?
Its repository states no licence, so its author keeps all rights: ask riyadh144 before reusing the design.
Similar boards
- 2 layers85 × 56.5 mm

- 2 layers38.8 × 20.7 mm

- 2 layers137.2 × 30.5 mm

Panaplex
74hc595/Panaplex-Clock
Code/schematics for a clock using a Panaplex (planar gas discharge) display
30 parts12BSD-3-Clause - 2 layers148.8 × 54.6 mm

Bowen nixie device
nonik0/stemmett-nixie-device
The hardware is designed in KiCad and all design files are included in the hardware directory. The hardware consists of the design of the main board PCB and three different versions of the PL31 socket breakout boards.
121 parts4 - 2 layers213 × 54 mm

Nixie board
Hardware7253/OperationUrd
A nixie tube clock inspired by the divergence meter from Steins;Gate.
99 parts1MIT - 2 layers100 × 100 mm

SynchroDriverD
schlae/SynchroDriver
Various boards for driving synchros and other 400Hz devices
252 parts1 - 4 layers86 × 47 mm

- 2 layers50.2 × 19.4 mm
