2 layers70 × 44 mm
2 layers43 × 26 mm
Cheddar
tperale/cheddar10:satellite: A ESP8266 connected button like the Amazon Dash but programmable
- Size
- 43 × 26 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 26
- Pads
- 116
- Tracks, vias
- 237, 26
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 9 Jul 2017
- Updated
- 4 Apr 2019
Overview
Cheddar is an open-source printed circuit board by tperale, from the tperale/cheddar repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 43 × 26 mm with 30 parts on 26 nets, routed with 237 tracks and 26 vias.
It is built around the ESP-12E, CH340G and HT7333, with the MCP73831 among its other parts. Its parts include 9 capacitors, 7 resistors, 3 ICs, 1 diode and 1 transistor. It belongs with the ESP8266 boards of this library.
Main components
4
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
CH340G
SOP-16-40℃~+85℃ 2Mbps 3.3V、5V USB 2.0 USB to UART SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB 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
MCP73831
UncategorisedMicrochip Technology
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R1, R2, R5, R6, R7 |
| 2 | 100nF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C6 |
| 2 | 220uF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C8, C9 |
| 2 | 22pF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C4, C5 |
| 2 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | , |
| 1 | 100k | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R4 |
| 1 | 10nF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C2 |
| 1 | 12Mhz | custom-cheddar:CRYSTAL-SMD-3.2X2.5MM | Y1 |
| 1 | 1uF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C7 |
| 1 | 22nF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C3 |
| 1 | 470 | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R3 |
| 1 | BATT_CONN | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | BAT_CONN |
| 1 | CH340G | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | D_Schottky | Diode_SMD:D_SOD-523 | |
| 1 | ESP-12E | RF_Module:ESP-12E | |
| 1 | EXTERNAL_TRIGGER | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | TRIG |
| 1 | GREEN | LED_SMD:LED_1206_3216Metric | D1 |
| 1 | HT7333 | Package_TO_SOT_SMD:SOT-89-3_Handsoldering | U4 |
| 1 | MCP73831 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U2 |
| 1 | MOSFET_PCH | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_REED_CT05-XXXX-G1 | TRIG_SW |
| 1 | USB_OTG | custom-cheddar:USB_Micro-B-custom | J1 |
Questions
How big is the Cheddar PCB?
It measures 43 × 26 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cheddar use?
30 parts, built around the ESP-12E, CH340G, HT7333 and MCP73831. 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 Cheddar KiCad files?
From the tperale/cheddar repository on GitHub, at the commit this page was made from: the board is schematics/cheddar.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cheddar design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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