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BitaxeBonanza

bitaxeorg·bitaxeBonanza

BitaxeBonanza PCB layout, top view — open source ESP32 board by bitaxeorg
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About the BitaxeBonanza PCB

BitaxeBonanza is an open source ESP32 PCB design by bitaxeorg, published on GitHub under the CERN-OHL-S-2.0 license. It is a 6-layer board measuring 130 × 112 mm, with 202 components from 44 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the TPSM861253RDXR, L78L05_SOT89, TPS546D24ARVFR, 25MHZ and SN74AVC4T774. By type, the board carries 114 capacitors, 47 resistors, 12 ICs, 12 diodes, 8 modules and 5 connectors.

From the project

Bitaxe based on the Intel BZM2 ASIC

Note: this design doesn't work because issue #3 and might never work because issue #4

Main components on the BitaxeBonanza

TPSM861253RDXRL78L05_SOT89TPS546D24ARVFRESP32-S3-WROOM-125MHZSN74AVC4T774MCP1824T-1202E/OTEMC2302BZM2_MODE1BZM2_MODE0

BitaxeBonanza bill of materials (BOM)

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

QtyPartRefs
1
TPSM861253RDXR
U1
1
L78L05_SOT89
U2
2
TPS546D24ARVFR
U3, U4
1
ESP32-S3-WROOM-1
U5
1
25MHZ
25MHz
U6
1
SN74AVC4T774
U7
4
MCP1824T-1202E/OT
U8, U9, U10, U11
1
EMC2302
U13
4
BZM2_MODE1
A1, A2, A5, A6
4
BZM2_MODE0
A3, A4, A7, A8
1
XT30
J1
1
CONN_01X08
Conn_01x08
J4
1
USB_C_RECEPTACLE_USB2.0
USB_C_Receptacle_USB2.0
J5
2
CONN_01X04
Conn_01x04
J7, J8
2
SWITCH-SPST
SW1, SW2
12
1SS380VMTE-17
D1, D2, D3, D4, D5, D6, D7, D8 +4
2
70NH
70nH
L1, L2
10
10UF
10uF
C1, C4, C5, C9, C10, C11, C12, C45 +2
14
1UF
1uF
C2, C3, C16, C18, C23, C24, C57, C58 +6
9
0.1UF
0.1uF
C6, C27, C28, C46, C47, C48, C67, C183 +1
Show 24 more
QtyPartRefs
2
33UF
33uF
C7, C8
2
4.7UF
4.7uF
C13, C17
2
1000PF
1000pF
C25, C26
2
33PF
33pF
C29, C31
1
100PF
100pF
C30
60
100UF
100uF
C32, C33, C34, C35, C36, C37, C38, C39 +52
1
12PF
12pF
C44
8
120PF
120pF
C49, C50, C51, C52, C53, C54, C55, C56
3
1000PF
1000pF
C180, C181, C182
2
20K
20k
R1, R28
3
0
R2, R3, R4
6
10K
10k
R5, R15, R24, R27, R29, R30
3
4.7K
4.7k
R6, R7, R8
1
6.34K
6.34k
R9
1
715
R10
1
20.5K
20.5k
R11
1
8.25K
8.25k
R14
1
6.81K
6.81k
R17
2
10
R18, R19
2
5.1K
5.1k
R20, R22
2
1
R21, R23
2
49.9
R25, R26
18
1k
R33, R34, R35, R36, R37, R38, R39, R40 +10
2
5.6K
5.6k
R51, R52

BitaxeBonanza design files

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

BitaxeBonanza: common questions

What microcontroller does the BitaxeBonanza use?

The BitaxeBonanza is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the BitaxeBonanza PCB?

The BitaxeBonanza measures 130 × 112 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the BitaxeBonanza?

202 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 BitaxeBonanza design files?

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

Can I use the BitaxeBonanza design in my own project?

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

Can I test firmware for the BitaxeBonanza without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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