Litewing-65-flight controller

neilgibsonpinto-art·litewing-65-flight-controller

Litewing-65-flight controller PCB layout, top view — open source ESP32 board by neilgibsonpinto-art

About the Litewing-65-flight controller PCB

Litewing-65-flight controller is an open source ESP32 PCB design by neilgibsonpinto-art, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 83 components from 43 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the ICM-42688-P, TP4056, AP2112K-3.3 and BMP280. By type, the board carries 29 resistors, 17 capacitors, 13 diodes, 9 connectors, 6 transistors and 5 ICs.

It belongs with the robotics & motion, iot & wireless and power & battery designs in this gallery.

From the project

All critical sub-circuits were validated through analytical and SPICE-level simulations:

All critical sub-circuits were validated through analytical and SPICE-level simulations:

1. Power-On Reset Delay: $R3=10\,\text{k}\Omega, C3=1.0\,\mu\text{F} \rightarrow \mathbf{13.86\,\text{ms}}$ delay to $V{IH}$ ($2.77\times$ safety margin over Espressif's 5ms spec). 2. Motor Driver Thermal Rise: $P{cond} = 43.2\,\text{mW}$ per motor at hover $\rightarrow \mathbf{\Delta T < 4.5^\circ\text{C}}$ junction rise; B5819W clamps flyback safely to $4.58\,\text{V}$. 3. LDO Headroom: Ultra-low dropout ($55\,\text{mV}$ @ 200mA) maintains clean $3.30\,\text{V}$ regulation down to the $3.45\,\text{V}$…

Litewing-65-flight controller, from the project README — From the project README

Main components on the Litewing-65-flight controller

ESP32-S3-WROOM-1 ICM-42688-P TP4056 AP2112K-3.3 BMP280

Litewing-65-flight controller bill of materials (BOM)

83 components, 43 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	ESP32-S3-WROOM-1 Espressif	ESP32-S3-WROOM-1	U1
1	ICM-42688-P TDK InvenSense / Bosch	LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y	U2
1	TP4056 NanJing Top Power	SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm	U4
1	AP2112K-3.3 Diodes Inc	SOT-23-5	U5
1	BMP280 Bosch Sensortec	Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering	U6
6	AO3400A Alpha & Omega	SOT-23	Q1, Q2, Q3, Q4, Q5, Q6
1	3.7V_LIPO JST	JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal	J1
1	USB_C_16P Korean HRO / Amphenol	USB_C_Receptacle_HRO_TYPE-C-31-M-12	J2
1	RC_RECEIVER Generic	PinHeader_1x04_P2.54mm_Vertical	J3
1	M1_MOTOR Generic	PinHeader_1x02_P1.27mm_Vertical	J4
1	M2_MOTOR Generic	PinHeader_1x02_P1.27mm_Vertical	J5
1	M3_MOTOR Generic	PinHeader_1x02_P1.27mm_Vertical	J6
1	M4_MOTOR Generic	PinHeader_1x02_P1.27mm_Vertical	J7
1	GPS_MODULE Generic	PinHeader_1x04_P1.27mm_Vertical	J8
1	I2C_COMPASS Generic	PinHeader_1x02_P1.27mm_Vertical	J9
1	BUZZER_ACTIVE Murata / PUI Audio	Buzzer_12x9.5RM7.6	BZ1
1	RESET C&K Components	SW_SPST_PTS810	SW1
1	BOOT C&K Components	SW_SPST_PTS810	SW2
1	PWR_SW C&K Components	SW_SPDT_PCM12	SW3
1	RED_CHRG Everlight	LED_0603_1608Metric	D1

Show 23 more

Qty	Part	Footprint	Refs
1	GRN_DONE Everlight	LED_0603_1608Metric	D2
5	B5819W MCC	D_SOD-123	D3, D4, D5, D6, D9
1	WS2812B_RGB Worldsemi	LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm	D7
1	BLUE_STATUS Everlight	LED_0603_1608Metric	D8
1	WHITE_FL Everlight	LED_0603_1608Metric	D10
1	WHITE_FR Everlight	LED_0603_1608Metric	D11
1	RED_RL Everlight	LED_0603_1608Metric	D12
1	RED_RR Everlight	LED_0603_1608Metric	D13
3	10uF Murata / Samsung	C_0805_2012Metric	C1, C9, C10
9	100nF Yageo / Murata	C_0603_1608Metric	C2, C6, C13, C14, C15, C16, C25, C26 +1
2	1uF Murata	C_0603_1608Metric	C3, C11
2	2.2uF Murata	C_0603_1608Metric	C7, C12
1	100uF Panasonic	CP_Elec_5x5.3	C24
2	5.1k Yageo	R_0603_1608Metric	R1, R2
8	10k Yageo	R_0603_1608Metric	R3, R4, R9, R11, R13, R15, R31, R40
1	1.2k Yageo	R_0603_1608Metric	R5
5	1k Yageo	R_0603_1608Metric	R6, R7, R29, R30, R39
4	47R Yageo	R_0603_1608Metric	R8, R10, R12, R14
2	100k_1% Yageo	R_0603_1608Metric	R26, R27
1	330R Yageo	R_0603_1608Metric	R28
2	4.7k Yageo	R_0603_1608Metric	R32, R33
2	56R Yageo	R_0603_1608Metric	R35, R36
2	120R Yageo	R_0603_1608Metric	R37, R38

Litewing-65-flight controller design files

The KiCad project lives in the neilgibsonpinto-art/litewing-65-flight-controller repository on GitHub; these links point at the commit this page was built from.

Litewing-65-flight controller: common questions

What microcontroller does the Litewing-65-flight controller use?

The Litewing-65-flight controller is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Litewing-65-flight controller PCB?

The Litewing-65-flight controller measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Litewing-65-flight controller?

83 components, from 43 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Litewing-65-flight controller design files?

From the neilgibsonpinto-art/litewing-65-flight-controller repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Litewing-65-flight controller design in my own project?

The repository has no license, so all rights stay with neilgibsonpinto-art. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Litewing-65-flight controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

Similar boards