2 layers43 × 26 mm
Cheddar
tperale/cheddar
:satellite: A ESP8266 connected button like the Amazon Dash but programmable
30 parts10CC-BY-SA-4.0
2 layers70 × 44 mm
UCHET PLUS 1 8
VGCH/UCHET_PLUS26- Size
- 70 × 44 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 50
- Pads
- 136
- Tracks, vias
- 256, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Jul 2024
- Updated
- 25 Dec 2025
Overview
UCHET PLUS 1 8 is an open-source printed circuit board by VGCH, from the VGCH/UCHET_PLUS2 repository on GitHub. It is a 2-layer board of 70 × 44 mm with 41 parts on 50 nets, routed with 256 tracks and 0 vias.
It is built around the ATTINY2313A-SU, ESP-12E and MAX1676EUB+, with the HT7333 among its other parts. Its parts include 16 resistors, 10 capacitors, 5 ICs, 3 connectors and 2 switches. It belongs with the ESP8266 and AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY2313A-SU
SOIC-20-300mil-40℃~+85℃ 1.8V~5.5V 128Byte 128Byte 18 20MHz 2KB 8 Bit AVR Built-in FLASH SOIC-20-300mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
ESP-12E
SMD,24x16mm-20℃~+70℃ -90dBm 16dBm 170mA 2.4GHz 3V~3.6V 56mA 802.11b/g/n ESP8266 Chip On-board PCB Antenna Over-the-air (OTA) update UART、SPI、I2C SMD,24x16mm WiFi Modules ROHSAi-ThinkerWiFi Modules
MAX1676EUB+
MSOP-10-40℃~+85℃@(TA) 1 2V~5.5V 500kHz 700mV~5.5V Adjustable Boost Boost Built-in Light load efficient mode、Adjustable current limiting Yes MSOP-10 DC-DC Converters ROHSMaxim Integrated (Analog Devices)DC-DC Converters
HT7333
SOT-89-40℃~+85℃ 1 1.5uA 20V 3.3V 300mA 300mV@(100mA) Fixed Positive Short Circuit Protection SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMinosVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdПроект устройства для интеграции счетчиков воды в системы умного дома
Принципиальная схема
Полное описание в статье на Хабр
Если данный проект был вам полезен, то вы можете задонатить разработчику на оборудование.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R4, R5, R6, R8, R12 |
| 4 | 100n | Capacitor_SMD:C_1206_3216Metric | C2, C4, C5, C9 |
| 3 | 10n | Capacitor_SMD:C_1206_3216Metric | C6, C7, C8 |
| 2 | 100uF | Capacitor_SMD:CP_Elec_6.3x5.8 | C1, C3 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R10, R11 |
| 2 | 4.7к | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | R_0805_2012Metric | Resistor_SMD:R_0805_2012Metric | BR1, BR2 |
| 1 | 10 | Resistor_SMD:R_0805_2012Metric | R16 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric | R13 |
| 1 | 10uF | Capacitor_SMD:C_1206_3216Metric | C10 |
| 1 | 200 | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | 22uH | Inductor_SMD:L_1210_3225Metric | L1 |
| 1 | 2k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 30k | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 470 | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | ATtiny2313A-S | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U4 |
| 1 | CONFIG MODE | Button_Switch_THT:SW_PUSH_6mm | SW4 |
| 1 | Counter2 | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J2 |
| 1 | Couter1 | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type101_RT01602HBWC_1x02_P5.08mm_Horizontal | J1 |
| 1 | ESP-12E | RF_Module:ESP-12E | U5 |
| 1 | HT7333 | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | LED | LED_THT:LED_D3.0mm_IRGrey | D1 |
| 1 | LP2985-18DBVR_SOT23 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | MAX1676 | Package_SO:MSOP-10-1EP_3x3mm_P0.5mm_EP2.2x3.1mm_Mask1.83x1.89mm_ThermalVias | U6 |
| 1 | Power | TerminalBlock_4Ucon:TerminalBlock_4Ucon_1x02_P3.50mm_Horizontal | J3 |
| 1 | RESET / WAKEUP | Button_Switch_THT:SW_PUSH_6mm | SW3 |
| 1 | R_1206_3216Metric | Resistor_SMD:R_1206_3216Metric | BR3 |
Questions
How big is the UCHET PLUS 1 8 PCB?
It measures 70 × 44 mm and has 2 copper layers, 1.6 mm thick.
What parts does the UCHET PLUS 1 8 use?
41 parts, built around the ATTINY2313A-SU, ESP-12E, MAX1676EUB+ and HT7333. 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 UCHET PLUS 1 8 KiCad files?
From the VGCH/UCHET_PLUS2 repository on GitHub, at the commit this page was made from: the board is UCHET_PLUS_1_8/UCHET_PLUS_1_8.kicad_pcb and its schematic UCHET_PLUS_1_8/UCHET_PLUS_1_8.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the UCHET PLUS 1 8 design in my own project?
Its repository states no licence, so its author keeps all rights: ask VGCH before reusing the design.
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