HardLabs

Valhalla UFH Sensor (SMT)

csdexter·valhalla·hardware/eda/UFH-RTS/valhalla-ufh-sensor-SMT.kicad_pcb

Valhalla UFH Sensor (SMT) PCB layout, top view — open source AVR/Arduino board by csdexter

About the Valhalla UFH Sensor (SMT) PCB

Valhalla UFH Sensor (SMT) is an open source AVR/Arduino PCB design by csdexter, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 99.6 × 64.3 mm, with 53 components from 37 distinct parts.

Its main chip is the ATmega328PB-A, from the AVR/Arduino family. Other key parts include the MAX31865xAP, MAX31856, DS2484, ISO1410 and MAX3483. By type, the board carries 15 capacitors, 9 resistors, 7 ICs, 7 connectors, 6 diodes and 2 inductors.

It belongs with the sensors designs in this gallery.

From the project

Version-controlled material related to the Valhalla project

This repository contains version-controlled material related to operation Valhalla. The documentation counterparts are currently stored in Google Drive.

Main components on the Valhalla UFH Sensor (SMT)

ATmega328PB-AMAX31865xAPMAX31856DS2484ISO1410MAX348374LVC2G125

Valhalla UFH Sensor (SMT) bill of materials (BOM)

53 components, 37 distinct parts.

QtyPartRefs
1
ATmega328PB-A
U1
1
MAX31865xAP
U2
1
MAX31856
U3
1
DS2484
U4
1
ISO1410
U5
1
MAX3483
U6
1
74LVC2G125
U7
1
7.3728 MHz
Y1
1
K-TC
J1
1
RTD
J2
1
NTC
J3
1
1-W
J4
1
ModBUS
J5
1
ICSP
J6
1
MAINS
J7
1
~
JP1
1
IRM-02-3.3
PS1
4
470R
RL1, RL2, RL3, RL4
1
BusRx
D1
1
BusTx
D2
Show 17 more
QtyPartRefs
1
Temp
D3
1
Power
D4
1
3.3V
D6
1
BAT54S_R1_00001
D7
1
2512061217Y0
FB1
1
10uH
L1
2
20pF
C1, C2
8
0.1uF
C3, C4, C6, C7, C8, C11, C12, C13
1
4.7nF
C5
2
10nF
C9, C10
1
RTD-CI
C14
1
4.7uF
C15
1
NTC-REF
R3
4
0R
R6, R7, R10, R11
1
47K
R8
1
RTD-REF
R9
2
1K
R12, R13

Valhalla UFH Sensor (SMT) design files

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

Valhalla UFH Sensor (SMT): common questions

What microcontroller does the Valhalla UFH Sensor (SMT) use?

The Valhalla UFH Sensor (SMT) is built around the ATmega328PB-A, from the AVR/Arduino family.

How big is the Valhalla UFH Sensor (SMT) PCB?

The Valhalla UFH Sensor (SMT) measures 99.6 × 64.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Valhalla UFH Sensor (SMT)?

53 components, from 37 distinct parts. The full bill of materials is listed on this page.

Where can I download the Valhalla UFH Sensor (SMT) design files?

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

Can I use the Valhalla UFH Sensor (SMT) design in my own project?

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

Can I test firmware for the Valhalla UFH Sensor (SMT) without the hardware?

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

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