E1041

Electro707·p1040_large_7seg_display·E1041 - PCB, Driver Board/E1041.kicad_pcb

About the E1041 PCB

E1041 is an open source RP2040/RP2350 PCB design by Electro707, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 116 × 90 mm, with 137 components from 67 distinct parts.

Its main chip is the ESP32-PICO-D4, from the RP2040/RP2350 family. Other key parts include the TPS2372, AP62200WU-7r, LAN8720Ar, CH340N and STP08DP05. By type, the board carries 54 resistors, 28 capacitors, 23 connectors, 10 ICs, 10 diodes and 6 inductors.

It belongs with the displays & leds designs in this gallery.

From the project

P1041: Large 7-segment Display Driver Project

This project is a driver for some large 4in 7-segment displays

Known issues, and any workarounds, are documented in ERRATA.md

This excludes the files in E1041 - PCB, Driver Board/ExternalStep, as they came from the manufacturer. Also excludes the files zones.c and zones.h in F1044, as those are modified from the microtzd library which is under an MIT license

Main components on the E1041

TPS2372AP62200WU-7rLAN8720ArESP32-PICO-D4 CH340N STP08DP05 TBD62783A 74HC595 TPS61040DBVVCB4812SO-3WR3

E1041 bill of materials (BOM)

137 components, 67 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	TPS2372	TI_RGW0020B	U1
1	AP62200WU-7r AP62200WU-7	TSOT-23-6	U3
1	LAN8720Ar LAN8720A	VQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias	U4
1	ESP32-PICO-D4	QFN-48-1EP_7x7mm_P0.5mm_EP5.3x5.3mm	U5
1	CH340N	SOP-8_3.9x4.9mm_P1.27mm	U6
1	STP08DP05	SO-16_3.9x9.9mm_P1.27mm	U7
1	TBD62783A	SOP-18_7x12.5mm_P1.27mm	U8
1	74HC595	SO-16_3.9x9.9mm_P1.27mm	U9
1	TPS61040DBV	SOT-23-5	U10
1	VCB4812SO-3WR3 VCB48_SO-3WR3	VCB48_SO-3WR3	U11
1	MMBT3904	SOT-23	Q1
1	ECS-2520MV-250-CN-TR ECS-2520MV-xxx-xx	Oscillator_SMD_ECS_2520MV-xxx-xx-4Pin_2.5x2.0mm	X1
1	PJ-202A Barrel_Jack	BarrelJack_Horizontal	J1
1	1751248 Screw_Terminal_01x02	TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal	J2
1	74984104400	74984104400	J3
1	Conn_Coaxial	SMA_Amphenol_901-143_Horizontal	J4
1	CONN_01X03 Conn_01x03	PinSocket_1x03_P2.54mm_Vertical	J5
1	USB4105-GF-A USB_C_Receptacle_USB2.0_14P	USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal	J6
16	B5B-PH-K-S Conn_01x05_Pin	JST_PH_B5B-PH-K_1x05_P2.00mm_Vertical	J7, J8, J9, J10, J11, J12, J13, J14 +8
1	CONN_01X06_FEMALE Conn_01x06_Female	Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical	J23

Show 47 more

Qty	Part	Footprint	Refs
1	2450AT43F0100001E Antenna_Chip	Johanson_2450AT43F0100	AE1
2	0ZCJ0050FF2G 500mA	Fuse_1206_3216Metric	F1, F2
1	JUMPER_2_BRIDGED Jumper_2_Bridged	R_0805_2012Metric	JP1
2	CDBHM220L	TO-269AA	D1, D2
1	SMAJ58A	D_SMA	D3
1	SMF15A	D_SMF	D4
2	LED	LED_1206_3216Metric	D5, D6
4	MBR0530	D_SOD-123	D7, D9, D10, D11
3	BLM21AG102SN1D L_Ferrite	L_0805_2012Metric	L1, L3, L4
1	MAMK2520T3R3M 3.3uH	L_1206_3216Metric_Pad1.22x1.90mm_HandSolder	L2
1	L-14C2N2SV4T 2.2nH	L_0603_1608Metric	L5
1	1239AS-H-6R8M=P2 6.8uH	L_1206_3216Metric_Pad1.22x1.90mm_HandSolder	L6
4	0.1U 0.1u	C_0805_2012Metric	C1, C21, C22, C23
1	865060845002 100uF	C_Elec_6.3x5.4	C2
8	0.1UF 0.1uF	C_0805_2012Metric	C3, C5, C7, C13, C14, C15, C26, C29
1	1UF 1uF	C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C4
1	22UF 22uF	C_Elec_6.3x5.4	C6
2	0.1UF 0.1uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C8, C10
1	10UF 10uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C9
1	10UF 10uF	C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C11
1	22UF 22uF	C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C12
4	1UF 1uF	C_0805_2012Metric	C16, C17, C18, C20
1	2.2PF 2.2pF	C_0603_1608Metric	C24
1	4PF 4pF	C_0603_1608Metric	C25
1	4.7UF 4.7uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C27
1	1UF 1uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C28
1	13K 13k	R_0805_2012Metric	R1
1	12K 12k	R_0805_2012Metric	R2
1	1.3K 1.3k	R_0805_2012Metric	R3
14	0	R_0805_2012Metric	R4, R7, R9, R17, R33, R36, R37, R38 +6
1	63.4	R_0805_2012Metric	R5
1	249	R_0805_2012Metric	R6
1	49.9K 49.9k	R_0805_2012Metric	R8
1	DNP	R_0805_2012Metric	R10
1	470	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R11
5	10K 10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R12, R13, R29, R30, R50
1	31.6K 31.6k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14
4	1k	R_0805_2012Metric	R15, R16, R31, R32
4	49.9	R_0805_2012Metric	R18, R19, R20, R21
1	12.1K 12.1k	R_0805_2012Metric	R22
4	10K 10k	R_0805_2012Metric	R23, R28, R48, R49
1	1k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R24
7	0	R_0603_1608Metric	R25, R26, R27, R51, R52, R53, R54
2	5.1K 5.1k	R_0805_2012Metric	R34, R35
1	330	R_0805_2012Metric	R43
1	R	R_0805_2012Metric	R44
1	80.6K 80.6k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R47

E1041 design files

The KiCad project lives in the Electro707/p1040_large_7seg_display repository on GitHub; these links point at the commit this page was built from.

LayoutE1041 - PCB, Driver Board/E1041.kicad_pcb
SchematicE1041 - PCB, Driver Board/E1041.kicad_sch
BOMrelease/E1041 Rev 1 BOM.csv

E1041: common questions

What microcontroller does the E1041 use?

The E1041 is built around the ESP32-PICO-D4, from the RP2040/RP2350 family.

How big is the E1041 PCB?

The E1041 measures 116 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the E1041?

137 components, from 67 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 E1041 design files?

From the Electro707/p1040_large_7seg_display 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 E1041 design in my own project?

Yes, under the terms of its GPL-3.0 license, which Electro707 chose for the repository.

Can I test firmware for the E1041 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.