RTLS Mainboard V4

KhanKudo·diplomprojekt·hardware-kicad/RTLS_Mainboard_V4/RTLS_Mainboard_V4.kicad_pcb

About the RTLS Mainboard V4 PCB

RTLS Mainboard V4 is an open source Silicon Labs PCB design by KhanKudo, published on GitHub. It is a 4-layer board measuring 45 × 45 mm, with 74 components from 43 distinct parts.

Its main chip is the EFR32BG22C224F512IM40-CR, from the Silicon Labs family. Other key parts include the L86-M33, TPS563300DRLR, RFM95W-868S2, MCP73871 and BME680. By type, the board carries 27 capacitors, 20 resistors, 8 ICs, 5 connectors, 5 diodes and 3 inductors.

From the project

HTL tgm Diplomprojekt RTLS (IOO), Gruppe Foldlabs, Jahrgang 2023/24

Main components on the RTLS Mainboard V4

EFR32BG22C224F512IM40-CRL86-M33TPS563300DRLRRFM95W-868S2 MCP73871 BME680 ADXL343AVR128DA32x-xPT

RTLS Mainboard V4 bill of materials (BOM)

74 components, 43 distinct parts.

Qty	Part	Footprint	Refs
1	EFR32BG22C224F512IM40-CR	QFN40P500X500X90-41N-D	IC1
1	L86-M33	L80-M39	IC2
1	TPS563300DRLR	SOTFL50P160X60-8N	IC3
1	RFM95W-868S2	HOPERF_RFM9XW_SMD	U2
1	MCP73871	QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm	U3
1	BME680	Bosch_LGA-8_3x3mm_P0.8mm_ClockwisePinNumbering	U4
1	ADXL343	LGA-14_3x5mm_P0.8mm_LayoutBorder1x6y	U5
1	AVR128DA32x-xPT	TQFP-32_7x7mm_P0.8mm	U6
1	38.4 MHz	Crystal_SMD_EuroQuartz_X22-4Pin_2.5x2.0mm_HandSoldering	Y1
1	Conn_01x04_Pin	PinHeader_1x04_P2.54mm_Vertical	J2
1	LORA_ANN	PinSocket_1x02_P2.54mm_Vertical	J3
1	USB_C_Receptacle_PowerOnly_6P	USB_C_Receptacle_GCT_USB4135-GF-A_6P_TopMnt_Horizontal	J4
1	EFR_DEBUG	PinHeader_2x03_P2.54mm_Vertical	J5
1	Conn_01x02_Pin	JST_GH_SM02B-GHS-TB_1x02-1MP_P1.25mm_Horizontal	J6
1	Antenna_Shield	U.FL_Molex_MCRF_73412-0110_Vertical	AE1
1	10k	U.FL_Molex_MCRF_73412-0110_Vertical	AE2
2	SW_Push	SW_SPST_B3U-1000P	SW1, SW2
1	10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	TH1
4	LED	LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder	D1, D2, D5, D6
1	PWR	LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder	D3

Show 23 more

Qty	Part	Footprint	Refs
1	2U2	L_1210_3225Metric_Pad1.42x2.65mm_HandSolder	L1
1	1.5n	L_0603_1608Metric_Pad1.05x0.95mm_HandSolder	L2
1	2.7u	L_1210_3225Metric_Pad1.42x2.65mm_HandSolder	L3
2	1U	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C3
3	10U	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2, C11, C17
10	100n	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C4, C6, C9, C12, C18, C19, C20, C22 +2
2	120p	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5, C7
3	4U7	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C8, C15, C16
1	3.3p	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C10
2	10uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C13, C14
1	1uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C21
1	1n	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C24
1	47p	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C26
1	47u	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C27
9	10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2, R3, R5, R6, R7, R20, R21, R22 +1
1	100	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4
2	470E	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R8, R11
2	5.1k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R9, R10
2	100E	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14, R15
1	1k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R17
1	100k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R18
1	4k7	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R19
1	30.9k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R23

RTLS Mainboard V4 design files

The KiCad project lives in the KhanKudo/diplomprojekt repository on GitHub; these links point at the commit this page was built from.

RTLS Mainboard V4: common questions

What microcontroller does the RTLS Mainboard V4 use?

The RTLS Mainboard V4 is built around the EFR32BG22C224F512IM40-CR, from the Silicon Labs family.

How big is the RTLS Mainboard V4 PCB?

The RTLS Mainboard V4 measures 45 × 45 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the RTLS Mainboard V4?

74 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the RTLS Mainboard V4 design files?

From the KhanKudo/diplomprojekt repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the RTLS Mainboard V4 design in my own project?

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

Can I test firmware for the RTLS Mainboard V4 without the hardware?

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