

Lightball
Replacement PCB for those cheap "flying balls" from AliExpress
- Size
- 42.6 × 15.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 40
- Pads
- 170
- Tracks, vias
- 518, 133
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 18 Nov 2018
- Updated
- 6 Mar 2019
Overview
Lightball is an open-source printed circuit board by Jana-Marie, from the Jana-Marie/lightball repository on GitHub. It is a 2-layer board of 42.6 × 15.2 mm with 47 parts on 40 nets, routed with 518 tracks and 133 vias.
It is built around the ESP8266EX, ACT4088US-T and BMP388, with the MIC5504-3.3YM5 and WS2812B among its other parts. Its parts include 17 capacitors, 9 resistors, 6 diodes, 5 ICs and 3 connectors. It belongs with the lEDs and displays boards and the ESP8266 boards of this library.
Main components
5ESP8266EX
QFN-32-EP(5x5)-40℃~+125℃ -91dBm 120mA 2.4GHz 2.4GHz~2.4835GHz 2.5V~3.6V 21.5dBm 50mA 72.2Mbps SPI、UART、I2C、I2S WiFi transceiver QFN-32-EP(5x5) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICsACT4088US-T
SOT-23-6Buck Built-in SOT-23-6 DC-DC Converters ROHSQorvoDC-DC ConvertersBMP388
LGA-10(2x2)-40℃~+85℃ 1.65V~3.6V 1pa/K 2uA 30Kpa~1.25bar 50pa 8pa I2C、SPI LGA-10(2x2) Pressure Sensors ROHSBosch SensortecPressure SensorsMIC5504-3.3YM5
SOT-23-5-40℃~+125℃@(Tj) 1 120uVrms 15uA 180mV@(300mA) 3.3V 300mA 5.5V 75dB@(1kHz) Fixed Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsWS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdlightball
Don't build this, it does not work
Replacement PCB for cheap flying "lightballs" from china, adds device control, controllable LEDs and wifi.

Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 12k | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R4, R5, R6, R8, R9 |
| 5 | 0.1µ | Capacitor_SMD:C_0402_1005Metric | C6, C12, C13, C14, C19 |
| 4 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D3, D4, D5, D6 |
| 3 | 0.1µ | Capacitor_SMD:C_0603_1608Metric | C3, C10, C11 |
| 2 | 10p | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C7, C9 |
| 2 | D_Small | Diode_SMD:D_SOD-123 | D2, D7 |
| 1 | 10p | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 10u | Capacitor_SMD:C_0402_1005Metric | C15 |
| 1 | 10µ | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C2 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C18 |
| 1 | 22n | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 25LCxxx | Package_SO:SOIJ-8_5.3x5.3mm_P1.27mm | U5 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | 51k | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | ACT4088 | stmbl:SOT-23-6 | U3 |
| 1 | Antenna | TestPoint:TestPoint_Pad_1.0x1.0mm | AE1 |
| 1 | BMP388 | BMP388:PQFN50P200X200X80-10N | U1 |
| 1 | Conn_01x06 | Connector_PinSocket_1.27mm:PinSocket_1x06_P1.27mm_Vertical | J2 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | Y1 |
| 1 | ESP8266EX | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U4 |
| 1 | IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | L | stmbl:SMD_INDUCTOR_32x25 | L1 |
| 1 | L_Small | Inductor_SMD:L_0603_1608Metric | L2 |
| 1 | MIC5504-3.3YM5 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | Motor | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | MountingHole | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | H1 |
| 1 | R_POT | otter:RS20H11AA015 | RV1 |
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Questions
How big is the Lightball PCB?
It measures 42.6 × 15.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lightball use?
47 parts, built around the ESP8266EX, ACT4088US-T, BMP388 and MIC5504-3.3YM5. 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 Lightball KiCad files?
From the Jana-Marie/lightball repository on GitHub, at the commit this page was made from: the board is hardware/lightball.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lightball design in my own project?
Its repository states no licence, so its author keeps all rights: ask Jana-Marie before reusing the design.