HardLabs

Qaxe

shufps·qaxe·legacy/qaxe+/qaxe/qaxe.kicad_pcb

Qaxe PCB layout, top view — open source STM32 board by shufps

About the Qaxe PCB

Qaxe is an open source STM32 PCB design by shufps, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 89 × 137 mm, with 192 components from 58 distinct parts.

Its main chip is the STM32L072CBT6, from the STM32 family. Other key parts include the LTC3856, MCP1824T-0802E, AP3211, MCP1824T-1802E and 25MHz. By type, the board carries 104 capacitors, 49 resistors, 17 ICs, 6 diodes, 5 transistors and 3 connectors.

From the project

qaxe bitcoin miner

This directory contains deprecated hardware designs that are no longer maintained.

- No bug fixes - No hardware revisions - No firmware updates - No user support

The designs are provided as-is for reference and historical documentation.

- ~2.4 TH/s at ~55 W (230 V measured) - Final revisions: rev4 / rev4.1 - Known quirks with ASIC reset behavior

- ~1.7–1.8 TH/s depending on revision - Multiple early hardware revisions (rev1–rev3.2)

Qaxe, from the project README
From the project README

Main components on the Qaxe

LTC3856MCP1824T-0802EAP3211MCP1824T-1802E25MHzBM1368_mode1TXU0101TMP1075STM32L072CBT61117-3.3

Qaxe bill of materials (BOM)

192 components, 58 distinct parts.

QtyPartRefs
1
LTC3856
LTC3856EUH#PBF
U3
1
MCP1824T-0802E
MCP1824T-0802E/OT
U4
1
AP3211
AP3211KTR-G1
U6
1
MCP1824T-1802E
MCP1824T-1802E/OT
U7
1
25MHz
U8
4
BM1368_mode1
U19, U20, U25, U26
4
TXU0101
TXU0101DCKR
U29, U37, U38, U39
2
TMP1075
TMP1075NDRLR
U32, U33
1
STM32L072CBT6
STM32L072CBT6
U35
1
1117-3.3
LM1117IMPX-3.3/NOPB
U36
2
Fan_4pin
0470531000
M1, M2
4
CSD16415Q5T
CSD16415Q5T
Q3, Q4, Q5, Q6
1
BSS138
BSS138
Q7
1
8MHz
X1
1
Barrel_Jack_Switch
PJ-102AH
J1
1
SWD
PJ-102AH
J3
1
USB_C_Receptacle_USB2.0
USB4105-GF-A
J6
1
5A
0154005.DR
F1
1
boot
KMR221GLFS
SW1
1
SMBJ12A
SMBJ12A
D1
Show 38 more
QtyPartRefs
2
CMDSH-3
CMDSH-3 TR PBFREE
D2, D3
1
PMEG4030EP,115
PMEG4030EP,115
D4
2
LED
D5, D6
2
220nH
FP1008R5-R220-R
L1, L2
1
4.7µH/2A/3A
LQH5BPN4R7NT0L
L3
1
47p
C1
26
100n
C2, C4, C6, C7, C18, C22, C25, C49 +18
1
3.3n
C3
2
1n
C5, C8
1
4.7µ/25V
C9
6
100µ/6.3V
C1210C107M9PAC7800
C10, C11, C12, C13, C15, C17
5
22µ/25V
C1210C226K3PAC7800
C14, C16, C91, C92, C105
2
10µF/50V
C19, C98
48
1µ
C20, C24, C28, C30, C32, C33, C34, C35 +40
1
10n/250V
C21
2
22µ/16V
C23, C97
4
10µ/16V
C26, C27, C29, C31
3
330µ/6.3V
ECG-SY0J331R
C39, C45, C48
1
220µ/25V
875075355002
C95
1
4.7µ/6.3V
C106
16
10k
R1, R19, R20, R21, R22, R23, R24, R25 +8
3
1.5k
R2, R32, R34
1
2.2R
R3
1
8.45k
R4
2
100k
R5, R30
2
20k
TLR2HWDTE1L00F50
R6, R7
4
200
R8, R9, R10, R11
2
1mR
TLR2HWDTE1L00F50
R12, R13
2
10
R14, R15
1
84.5k
R16
1
16.3k
R17
1
49.9
R18
2
22
R26, R27
2
2.7k
R33, R41
2
560
R35, R36
1
49.9k
R37
2
5.1k
R40, R42
4
1k
R44, R45, R46, R47

Qaxe design files

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

Qaxe: common questions

What microcontroller does the Qaxe use?

The Qaxe is built around the STM32L072CBT6, from the STM32 family.

How big is the Qaxe PCB?

The Qaxe measures 89 × 137 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Qaxe?

192 components, from 58 distinct parts. The full bill of materials is listed on this page.

Where can I download the Qaxe design files?

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

Can I use the Qaxe design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which shufps chose for the repository.

Can I test firmware for the Qaxe 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.

More boards in qaxe

Similar boards