IMD TSMS latch logic v2

HKUST-Red-Bird-Racing-EVRT·GEN5_ELEC·IMD_TSMS_latch_logic_v2/IMD_TSMS_latch_logic_v2.kicad_pcb

About the IMD TSMS latch logic v2 PCB

IMD TSMS latch logic v2 is an open source ESP32 PCB design by HKUST-Red-Bird-Racing-EVRT, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 72 components from 39 distinct parts.

Its main chip is the ESP32-S3-WROOM-2, from the ESP32 family. Other key parts include the NE555 and CH340C. By type, the board carries 34 resistors, 11 capacitors, 7 transistors, 6 connectors, 5 diodes and 4 ICs.

From the project

Repository for RBR EVRT 2025 EE

Main components on the IMD TSMS latch logic v2

NE555 ESP32-S3-WROOM-2 CH340C

IMD TSMS latch logic v2 bill of materials (BOM)

72 components, 39 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
2	NE555	SOIC-8_3.9x4.9mm_P1.27mm	IC1, IC2
1	ESP32-S3-WROOM-2 4001	SOIC127P600X175-14N	U1
1	CH340C 4001	SOIC127P600X175-14N	U2
2	MMBT3904 AO3400A	SOT-23	Q1, Q2
3	AO3400A	SOT-23	Q3, Q5, Q6
2	AO3401A	SOT-23	Q4, Q7
1	CONN_01X03 Conn_01x02	Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical	J1
1	USB_C_RECEPTACLE_USB2.0_14P Conn_01x02	Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical	J2
3	CONN_01X02 Conn_01x02	Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical	J3, J4, J5
1	CONN_01X04 Conn_01x02	Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical	J6
2	SANYOU_SRD_Form_C	Relay_SPDT_SANYOU_SRD_Series_Form_C	K1, K2
1	SW_Push	Molex_Micro-Fit_3.0_43650-0215_1x02_P3.00mm_Vertical	SW1
2	TestPoint	TestPoint_Bridge_Pitch2.54mm_Drill1.0mm	TP1, TP2
4	1N4148	D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2, D3, D6
1	LED	LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder	D4
4	100NF 100n	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C5, C6, C8
1	10UF 1u	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2
1	100NF 1u	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C3
1	100NF 220u	CP_Radial_D5.0mm_P2.00mm	C4
1	100UF 1u	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C7

Show 19 more

Qty	Part	Footprint	Refs
1	22UF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C9
1	100NF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C10
1	330UF 1u	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C11
1	4K7 10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
3	1M	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2, R7, R20
1	4.7k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3
1	10K 4.7k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4
1	10K 10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5
1	120R 10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6
2	2.2k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R8, R9
1	1k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R10
3	100k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R12, R28, R29
9	10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R13, R17, R18, R19, R21, R30, R31, R32 +1
4	100R	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14, R22, R33, R34
1	249K 100k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R23
2	10R 100k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R24, R26
2	10R 100R	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R25, R27
1	4K7 100R	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R36
1	100K 100k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R37

IMD TSMS latch logic v2 design files

The KiCad project lives in the HKUST-Red-Bird-Racing-EVRT/GEN5_ELEC repository on GitHub; these links point at the commit this page was built from.

IMD TSMS latch logic v2: common questions

What microcontroller does the IMD TSMS latch logic v2 use?

The IMD TSMS latch logic v2 is built around the ESP32-S3-WROOM-2, from the ESP32 family.

How big is the IMD TSMS latch logic v2 PCB?

The IMD TSMS latch logic v2 measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IMD TSMS latch logic v2?

72 components, from 39 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 IMD TSMS latch logic v2 design files?

From the HKUST-Red-Bird-Racing-EVRT/GEN5_ELEC 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 IMD TSMS latch logic v2 design in my own project?

The repository has no license, so all rights stay with HKUST-Red-Bird-Racing-EVRT. Use it as a reference, and ask the author before reusing the design.