HardLabs

TempLoggerNG

miree·tempLoggerNG·hardware/tempLoggerNG.kicad_pcb

TempLoggerNG PCB layout, top view — open source AVR/Arduino board by miree

About the TempLoggerNG PCB

TempLoggerNG is an open source AVR/Arduino PCB design by miree, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 56.9 × 45 mm, with 29 components from 17 distinct parts.

Its main chip is the ATMEGA328p, from the AVR/Arduino family. Other key parts include the ADS1248 and NCP1117-3v3. By type, the board carries 9 capacitors, 6 resistors, 4 transistors, 4 transformers, 3 ICs and 2 connectors.

It belongs with the sensors and test & measurement designs in this gallery.

From the project

Four channel pt-100 temperature logging device using an ADS1248 and an ATMEGA328p with V-USB

A four-channel PT-100 temperature logging device built around a Texas Instruments ADS1248 precision delta-sigma ADC and an ATmega328p microcontroller with V-USB (software-only USB, no dedicated USB controller chip). The device connects directly to a PC over USB and is controlled by a small command-line tool that triggers measurements and logs resistance/temperature readings to a file.

Main components on the TempLoggerNG

ATMEGA328pADS1248NCP1117-3v3

TempLoggerNG bill of materials (BOM)

29 components, 17 distinct parts.

QtyPartRefs
1
ATMEGA328p
IC1
1
ADS1248
U1
1
NCP1117-3v3
U2
3
MOS_N
Q1, Q2, Q3
1
Q1-4: 2N7002
Q4
1
12MHz
X1
1
MR-AVR-ISP-6
CON1
1
USB-MINI-B
CON2
4
USB-MINI-B
T-0, T-1, T-2, T-3
4
100n
C1, C2, C7, C10
2
10u
C3, C4
2
15p
C5, C6
1
4u7
C8
2
10k
R1, R6
1
1k5
R2
2
68
R3, R4
1
4k7
R5

TempLoggerNG design files

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

TempLoggerNG: common questions

What microcontroller does the TempLoggerNG use?

The TempLoggerNG is built around the ATMEGA328p, from the AVR/Arduino family.

How big is the TempLoggerNG PCB?

The TempLoggerNG measures 56.9 × 45 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TempLoggerNG?

29 components, from 17 distinct parts. The full bill of materials is listed on this page.

Where can I download the TempLoggerNG design files?

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

Can I use the TempLoggerNG design in my own project?

Yes, under the terms of its GPL-2.0 license, which miree chose for the repository.

Can I test firmware for the TempLoggerNG 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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