4 layers116 × 148 mm
2 layers32 × 18 mm
ESPP
burgrp/hw-ESPPESP8266 programmer
- Size
- 32 × 18 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 27
- Pads
- 73
- Tracks, vias
- 150, 17
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Mar 2018
- Updated
- 2 Sep 2021
Overview
ESPP is an open-source printed circuit board by burgrp, from the burgrp/hw-ESPP repository on GitHub. It is a 2-layer board of 32 × 18 mm with 20 parts on 27 nets, routed with 150 tracks and 17 vias.
It is built around the CH340G, RT9193-3.3 and MMBT3904, with the BAT54C among its other parts. Its parts include 6 capacitors, 4 resistors, 2 ICs, 2 transistors and 2 crystals.
Main components
4
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
RT9193-3.3
SOT-23-5-20℃~+60℃@(Ta) 1 25uA 3.3V 300mA 35mV@(10mA)、280mV@(100mA) 75dB@(1kHz) 7V Enable Fixed Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTDSEMICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky Diodes
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 1k5 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C1, C3 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric | C5, C6 |
| 2 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 100n | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | 22n | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | BAT54C | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | CH340G | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | ESP-PROG | Drake:Micro-Match-FOB-6 | X2 |
| 1 | Ferrite bead | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | RT9193 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | USB_OTG | Drake:conn_usb_B_micro_smd-2 | P1 |
The 19 most common of 20 parts.
Questions
How big is the ESPP PCB?
It measures 32 × 18 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESPP use?
20 parts, built around the CH340G, RT9193-3.3, MMBT3904 and BAT54C. 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 ESPP KiCad files?
From the burgrp/hw-ESPP repository on GitHub, at the commit this page was made from: the board is ESPP.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESPP design in my own project?
Its repository states no licence, so its author keeps all rights: ask burgrp before reusing the design.
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