HardLabs

BQ24257-MPPT-TEST-KIT

eigenlucy·BQ24257-MPPT-TEST-KIT·BQ24257/BQ24257.kicad_pcb

BQ24257-MPPT-TEST-KIT PCB layout, top view — open source AVR/Arduino board by eigenlucy

About the BQ24257-MPPT-TEST-KIT PCB

BQ24257-MPPT-TEST-KIT is an open source AVR/Arduino PCB design by eigenlucy, published on GitHub. It is a 4-layer board measuring 57.4 × 51.5 mm, with 68 components from 41 distinct parts.

Its main chip is the ATtiny1627-M, from the AVR/Arduino family. Other key parts include the LTC1982ES6#TRMPBF, LTC3113EDHD#TRPBF, BQ24257RGET, AD5280 and AMS1117-3.3. By type, the board carries 19 resistors, 9 ICs, 6 capacitors, 3 transistors, 2 connectors and 2 diodes.

It belongs with the power & battery designs in this gallery.

Main components on the BQ24257-MPPT-TEST-KIT

LTC1982ES6#TRMPBFLTC3113EDHD#TRPBFBQ24257RGETAD5280AMS1117-3.3MCP4022-xxxxCHAD8218xCP

BQ24257-MPPT-TEST-KIT bill of materials (BOM)

68 components, 41 distinct parts.

QtyPartRefs
1
LTC1982ES6#TRMPBF
IC1
1
LTC3113EDHD#TRPBF
IC2
1
BQ24257RGET
U1
1
AD5280
U2
1
AMS1117-3.3
U3
2
MCP4022-xxxxCH
U4, U5
2
AD8218xCP
U8, U9
1
SQS201CENW-T1_GE3
Q2
1
IRLML6401
Q3
1
SUD09P10-195
Q4
1
1-0301FBV0T
UPDI
TAD
J3
1
NTC
J4
1
ATtiny1627-M
ATTINY1627
4
1190297
BATTERY1, BAT_OUT1, SOLAR_CELL1, VOUT1
2
R_US
BAT_SENSE1, SOLAR_SENSE1
1
TBD
CVREF1
1
680p
C_VC1
1
12p
C_VC2
1
47p
C_VC3
1
10u
C_VHS1
Show 21 more
QtyPartRefs
2
22u
C_Vusb1, Cbat1
1
33n
Cboot1
4
1u
Cldo1, Cldoin1, Cpmid1, Csin1
1
22u
Cvsys1
1
74438324010
Lo1
2
DoNotPlace
RPilim1, Rpiset1
1
R_US
Rdpmt1
1
CH330N
UART1
1
USB_C_Receptacle_USB2.0_14P
USB-C1
2
1N4448WS
D1, D2
1
SRP3212A-2R2M
L1
6
.1u
C1, C2, C3, C4, C5, C6
8
10k
R1, R2, R7, R8, R9, R17, R18, R19
2
5.1k
R3, R4
1
5k
R5
1
9.82k
R6
1
49.9K
R10
2
182k
R11, R12
1
6.49k
R13
1
90.9k
R14
2
TBD
R15, R16

BQ24257-MPPT-TEST-KIT design files

The KiCad project lives in the eigenlucy/BQ24257-MPPT-TEST-KIT repository on GitHub; these links point at the commit this page was built from.

BQ24257-MPPT-TEST-KIT: common questions

What microcontroller does the BQ24257-MPPT-TEST-KIT use?

The BQ24257-MPPT-TEST-KIT is built around the ATtiny1627-M, from the AVR/Arduino family.

How big is the BQ24257-MPPT-TEST-KIT PCB?

The BQ24257-MPPT-TEST-KIT measures 57.4 × 51.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the BQ24257-MPPT-TEST-KIT?

68 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the BQ24257-MPPT-TEST-KIT design files?

From the eigenlucy/BQ24257-MPPT-TEST-KIT repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the BQ24257-MPPT-TEST-KIT design in my own project?

The repository has no license, so all rights stay with eigenlucy. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the BQ24257-MPPT-TEST-KIT 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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