2 layers54.9 × 95 mm
Board v5
brev-dev/another_esp8266_sensor_board
PCB layout and instructions for a multi-purpose esp8266 sensor device, with optional LORA connectivity.
86 parts5GPL-3.0
2 layers63.9 × 15 mm
ESPower
nagius/ESPowerMotherboard for ESP8266-01 with voltage regulator, voltage protection and Li-Ion battery charger integrated.
- Size
- 63.9 × 15 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 30
- Pads
- 110
- Tracks, vias
- 202, 13
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 21 Jul 2024
- Updated
- 3 Sep 2024
Overview
ESPower is an open-source printed circuit board by nagius, from the nagius/ESPower repository on GitHub. It is a 2-layer board of 63.9 × 15 mm with 38 parts on 30 nets, routed with 202 tracks and 13 vias.
It is built around the DW01A, SPX3819M5-L-3-3 and TP4056, with the TPS3839G33DBZ, SS34 and DMP2035U-7(ES) among its other parts. Its parts include 11 resistors, 8 capacitors, 5 ICs, 5 connectors and 4 diodes. It belongs with the power and computers and single-board computers boards and the ESP8266 boards of this library.
Main components
7
DW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery Management
SPX3819M5-L-3-3
SOT-23-5-40℃~+85℃@(Ta) 1 20V 3.3V 420mV@(100mA) 500mA 5uA 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TP4056
ESOP-8-40℃~+85℃ 1 1A 35uA 4.2V 4V~6.5V Charging IC Lithium Battery Support Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSUMWBattery Management
TPS3839G33DBZ
SOT-23-3-40℃~+85℃@(TA) 1 150nA 200ms 3.08V 900mV~6.5V Active Low No No Push-pull Voltage Monitor SOT-23-3 Supervisor and Reset ICs ROHSTexas InstrumentsSupervisor And Reset ICs
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
DMP2035U-7(ES)
SOT-23SOT-23 MOSFETs ROHSElecSuperMOSFETsFS8205A
SOT-23-6-55℃~+150℃ 1.2V 1.5W 2 N-Channel 20V 31.5mΩ@2.5V 466pF 5.7nC@4.5V 58pF 65pF 6A SOT-23-6 MOSFETs ROHSTECH PUBLICMOSFETs
README
README.mdESPower
ESPower is a motherboard for ESP8266-01 with voltage regulator, voltage protection and Li-Ion battery charger integrated.
It has been designed to run off intermittent 5V USB power supply but it can also be powerred by a small 6V Solar panels. Low power consumption has been kept in mind.
The narrow form factor has been designed to be embedded in small upcycled objects like used glass bottles.
Features
- Li-Ion battery charger with battery protection (TP4056).
- Intensity of battery recharge can be selected between 250mA and 1A with solder jumpers.
- Power path to select if the board is always powered by the battery or is also powered by VCC when an external power supply is provided.
- Voltage detector to properly switch off the ESP8266 when the battery voltage is too low for proper operation. This prevent crashes of the ESP when the battery is drained.
- Voltage detector signal is exported so it can be used by any attached components, like boost-buck converters to shut them down if the battery voltage is too low.
Manufacturing
See directory Gerber/ for production files and bill of materials.
Versions
Version 2 has been slightly improved with a smaller form-factor, Tantalum capacitors to reduce thickness and pull-up resistors on GPIOs to ensure proper boot of the ESP.
License
Copyleft 2022-2024 - Nicolas AGIUS
Creative Commons - Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 10uF | Capacitor_SMD:C_0603_1608Metric | C3, C5, C8 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R2, R3, R4 |
| 2 | 1.2k | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric | R1, R9 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C4, C6 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R10, R11 |
| 2 | 220uF | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C | C1, C7 |
| 2 | SS34 | Diode_SMD:D_SMA | D1, D2 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 2.4k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | A | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | SW2 |
| 1 | B | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | SW3 |
| 1 | Battery | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | DMP2035U-7 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | ESP8266-01_ESP-01 | Custom:XCVR_ESP8266-01_ESP-01 | U5 |
| 1 | FS8205A | Package_TO_SOT_SMD:SOT-23-6 | Q2 |
| 1 | GPIO | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | Input | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | LED Blue | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | LED Red | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | Output | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | Power Switch | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | PowerPath enable | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | SW1 |
| 1 | SPX3819M5-L-3-3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | TP4056 | Package_SO:HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.4x3.2mm | U1 |
| 1 | TPS3839G33DBZ | Package_TO_SOT_SMD:SOT-23 | U4 |
Questions
How big is the ESPower PCB?
It measures 63.9 × 15 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESPower use?
38 parts, built around the DW01A, SPX3819M5-L-3-3, TP4056 and TPS3839G33DBZ. 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 ESPower KiCad files?
From the nagius/ESPower repository on GitHub, at the commit this page was made from: the board is Kicad/ESPower.kicad_pcb and its schematic Kicad/ESPower.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESPower design in my own project?
Its repository states no licence, so its author keeps all rights: ask nagius before reusing the design.
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