HardLabs

Thermal spectrum

spbnick·thermal-spectrum·printer.kicad/printer.kicad_pcb

Thermal spectrum PCB layout, top view — open source STM32 board by spbnick
Simulate this board

About the Thermal spectrum PCB

Thermal spectrum is an open source STM32 PCB design by spbnick, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 74 × 47 mm, with 39 components from 19 distinct parts.

Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the MC74ACT373DWR, SN74HCT00DR, SN74HCT02DRG4, XC6206PxxxMR and INA180A2IDBVR. By type, the board carries 15 capacitors, 10 resistors, 7 ICs, 4 connectors, 2 diodes and 1 crystal.

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

From the project

ZX Printer interface for a thermal printer module

Thermal Spectrum ================ Thermal Spectrum is a ZX Printer interface to a thermal printer module, for ZX Spectrum computer.

Building the firmware --------------------- First you'll need the compiler. If you're using a Debian-based Linux you can get it by installing gcc-arm-none-eabi package. Then you'll need the [libstammer][libstammer] library. Build it first, then export environment variables pointing to it:

Main components on the Thermal spectrum

MC74ACT373DWRSN74HCT00DRSN74HCT02DRG4XC6206PxxxMRSTM32F103C8TxINA180A2IDBVR

Thermal spectrum bill of materials (BOM)

39 components, 19 distinct parts.

QtyPartRefs
2
MC74ACT373DWR
U1, U4
1
SN74HCT00DR
U2
1
SN74HCT02DRG4
U3
1
XC6206PxxxMR
U5
1
STM32F103C8Tx
U6
1
INA180A2IDBVR
U7
1
8MHz
Y1
1
ZX_Spectrum_128K_expansion
J1
1
Conn_01x06_Male
J2
1
Conn_01x05_Male
J3
1
Conn_01x04_Male
J4
1
LED_BLUE
D1
1
LED_GREEN
D2
10
100nF
C1, C3, C4, C5, C9, C10, C12, C13 +2
3
1uF
C2, C6, C11
2
20pF
C7, C8
7
10K
R1, R2, R3, R4, R5, R7, R10
1
R02
R6
2
510R
R8, R9

Thermal spectrum design files

The KiCad project lives in the spbnick/thermal-spectrum repository on GitHub; these links point at the commit this page was built from.

Thermal spectrum: common questions

What microcontroller does the Thermal spectrum use?

The Thermal spectrum is built around the STM32F103C8Tx, from the STM32 family.

How big is the Thermal spectrum PCB?

The Thermal spectrum measures 74 × 47 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Thermal spectrum?

39 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Thermal spectrum design files?

From the spbnick/thermal-spectrum repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Thermal spectrum design in my own project?

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

Can I test firmware for the Thermal spectrum without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

Similar boards