2 layers217 × 116 mm
Board nhiet
NguyenThanhHuy-debug/PCB-Liquid-Dispensing-Cabinet
PCB-Liquid-Dispensing-Cabinet — a software project built with modern tooling.
191 parts4
2 layers
HT trial
mucaaaw/Trialtrial
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 57
- Pads
- 182
- Tracks, vias
- 260, 7
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 May 2025
- Updated
- 16 May 2025
Overview
HT trial is an open-source printed circuit board by mucaaaw, from the mucaaaw/Trial repository on GitHub. It is a 2-layer board with 25 parts on 57 nets, routed with 260 tracks and 7 vias.
It is built around the ESP32-WROOM-32UE-N4 and AMS1117-3.3. Its parts include 7 capacitors, 4 ICs, 3 resistors, 2 connectors and 1 diode. It belongs with the ESP32 boards of this library.
Main components
2
ESP32-WROOM-32UE-N4
SMD,19.2x18mm-40℃~+85℃ -88dBm 112mA 19.5dBm 2.4GHz 239mA 3V~3.6V Bluetooth4.2 ESP32-D0WD-V3、ESP32-D0WDR2-V3 UART、SDIO、SPI、I2C、GPIO、ADC、I2S、DAC、Ethernet、TWAI SMD,19.2x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdTrial
trial
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0.1µF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C4, CIN1 |
| 2 | 1µF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | Cbypass1, COUT1 |
| 2 | 220pF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C5, C6 |
| 1 | 0.1µF | Capacitor_SMD:C_0201_0603Metric | C26 |
| 1 | 0.47µF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | CBIAS1 |
| 1 | 100kΩ | Resistor_SMD:R_0201_0603Metric | R2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | ROUT1 |
| 1 | 10µF | Capacitor_SMD:C_0201_0603Metric | C27 |
| 1 | 10µF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | C3 |
| 1 | 150kΩ | Resistor_SMD:R_0201_0603Metric | R1 |
| 1 | 2.21kΩ | Resistor_SMD:R_0201_0603Metric | RMICBIAS1 |
| 1 | 2.2µF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | CCG1 |
| 1 | 470nF | Capacitor_SMD:C_0201_0603Metric_Pad0.64x0.40mm_HandSolder | CCT1 |
| 1 | 560 | Resistor_SMD:R_0201_0603Metric_Pad0.64x0.40mm_HandSolder | R8 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U10 |
| 1 | Conn_01x06_Pin | Connector_JST:JST_EH_B6B-EH-A_1x06_P2.50mm_Vertical | J4 |
| 1 | D_Photo | Diode_SMD:D_SOD-123F | D2 |
| 1 | ESP32-WROOM-32UE | RF_Module:ESP32-WROOM-32UE | U9 |
| 1 | MAX9814 | Package_DFN_QFN:DFN-14-1EP_3x3mm_P0.4mm_EP1.78x2.35mm | U3 |
| 1 | MAX98357A | Package_DFN_QFN:TQFN-16-1EP_3x3mm_P0.5mm_EP1.23x1.23mm | U2 |
| 1 | Microphone | Sensor_Audio:POM-2244P-C3310-2-R | MK1 |
| 1 | Speaker | Connector_JST:JST_VH_B2P-VH-B_1x02_P3.96mm_Vertical | J3 |
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Questions
What parts does the HT trial use?
25 parts, built around the ESP32-WROOM-32UE-N4 and AMS1117-3.3. 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 HT trial KiCad files?
From the mucaaaw/Trial repository on GitHub, at the commit this page was made from: the board is HT trial.kicad_pcb and its schematic HT trial.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the HT trial design in my own project?
Its repository states no licence, so its author keeps all rights: ask mucaaaw before reusing the design.