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Ece455

ethanewer·ece455·receiver_design/kicad/receiver.net

This repository ships a schematic but no board layout.

About the Ece455 PCB

Ece455 is an open source RP2040/RP2350 PCB design by ethanewer, published on GitHub. It is a board, with 72 components from 44 distinct parts.

Its main chip is the Seeed Studio XIAO RP2350, from the RP2040/RP2350 family. Other key parts include the OPA4197IPWR, TMUX1101DBVR, 74AHCT1G125 and 74LVC1G125. By type, the board carries 24 capacitors, 18 resistors, 12 test points, 9 ICs, 4 connectors and 3 diodes.

From the project

This directory defines the receiver from the external FID sensing pair through a HiLetgo ADS1256 module and Seeed Studio XIAO RP2350. The selected ADC module is the Amazon item at https://www.amazon.com/dp/B09KGXC44Q.

This directory defines the receiver from the external FID sensing pair through a HiLetgo ADS1256 module and Seeed Studio XIAO RP2350. The selected ADC module is the Amazon item at https://www.amazon.com/dp/B09KGXC44Q.

1. J1 connects the series-aiding sensing pair from CoilDesign.xlsx: 99.936 ohm and 152.568 mH. J4 selects the tank and is the only setup change between the two test bands. A shunt on pins 1-2 connects C25 (47 nF) and C26 (4.7 nF), resonant at 1792 Hz. A shunt on pins 2-3 connects C27 (33 nF) and C28 (4.7 nF), resonant at 2099 Hz. Each tank is about 104 Hz wide because that…

Main components on the Ece455

OPA4197IPWRTMUX1101DBVRSeeed Studio XIAO RP235074AHCT1G12574LVC1G125

Ece455 bill of materials (BOM)

72 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
OPA4197IPWR
U1
1
TMUX1101DBVR
U2
1
Seeed Studio XIAO RP2350
U3
4
74AHCT1G125
U4, U5, U6, U7
2
74LVC1G125
U8, U9
1
FID SENSING COIL
J1
1
HILETGO ADS1256 DIGITAL HEADER
J2
1
HILETGO ADS1256 ANALOG HEADER
J3
1
TUNE SELECT
J4
1
GND
TP1
1
COIL_HI
TP2
1
PRE_IN
TP3
1
VBIAS_1V5
TP4
1
STAGE1
TP5
1
STAGE2
TP6
1
STAGE3
TP7
1
ADS1256_AIN0_SIGNAL
TP8
1
BLANK_D1_GPIO27
TP9
1
AVDD_3V3
TP10
1
USB_VBUS_5V
TP11
Show 24 more
QtyPartRefs
1
ADS1256_DRDY_5V
TP12
3
BAS116H low leakage
D1, D2, D3
2
600R@100MHz 500mA
FB1, FB2
1
3.3n C0G 2%
C5
4
10u 10V
C6, C10, C14, C21
1
100n C0G 5%
C7
1
6.8n C0G 2%
C8
1
2.2n C0G 2%
C9
10
100n X7R
C11, C12, C15, C16, C17, C18, C19, C20 +2
1
1u X7R
C13
1
3.9n C0G 2%
C23
1
47n C0G 2%
C25
2
4.7n C0G 2%
C26, C28
1
33n C0G 2%
C27
1
1k 1%
R1
1
8.2M 1%
R2
7
100k 1%
R3, R13, R16, R17, R18, R19, R20
1
23.2k 0.1%
R4
2
10k 0.1%
R5, R12
1
1.05k 0.1%
R8
1
59k 0.1%
R9
2
10.2k 0.1%
R10, R11
1
1.21k 1%
R14
1
681 1%
R15

Ece455 design files

The KiCad project lives in the ethanewer/ece455 repository on GitHub; these links point at the commit this page was built from.

Ece455: common questions

What microcontroller does the Ece455 use?

The Ece455 is built around the Seeed Studio XIAO RP2350, from the RP2040/RP2350 family.

How many components are on the Ece455?

72 components, from 44 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 Ece455 design files?

From the ethanewer/ece455 repository on GitHub, which has a netlist and the BOM; the links under Design files point to each one.

Can I use the Ece455 design in my own project?

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

Can I test firmware for the Ece455 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.

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