Metro and Metro Express, Grand Central

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SAMD51 (M4) board users: update your bootloaders to >=v3.9.0
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by danhalbert » Fri May 08, 2020 12:55 pm

Last post by hnaseri « Tue Apr 27, 2021 10:58 am

by danhalbert » Fri May 08, 2020 12:55 pm
30 Replies

13043 Views

Last post by hnaseri
Tue Apr 27, 2021 10:58 am
beta experimental - https://maker.makecode.com

by adafruit » Tue Jan 23, 2018 9:37 pm

Last post by bbutl58 « Sun Jun 24, 2018 6:55 am

by adafruit » Tue Jan 23, 2018 9:37 pm

6 Replies

11792 Views

Last post by bbutl58
Sun Jun 24, 2018 6:55 am
New Metro M4 board does not seem to be working

by mwhannan74 » Wed Aug 17, 2022 1:49 pm

Last post by Franklin97355 « Fri Aug 19, 2022 12:56 am

by mwhannan74 » Wed Aug 17, 2022 1:49 pm

3 Replies

17 Views

Last post by Franklin97355
Fri Aug 19, 2022 12:56 am
I2C on Metro Mini (pullup resistor and IS31FL3237 LED Driver)

by project zero » Thu Aug 18, 2022 5:18 pm

Last post by project zero « Thu Aug 18, 2022 6:26 pm

by project zero » Thu Aug 18, 2022 5:18 pm

2 Replies

14 Views

Last post by project zero
Thu Aug 18, 2022 6:26 pm
Trouble connecting to Metro M4 Express

by drosophilic » Thu Aug 18, 2022 4:42 pm

Last post by mikeysklar « Thu Aug 18, 2022 5:25 pm

by drosophilic » Thu Aug 18, 2022 4:42 pm

1 Replies

9 Views

Last post by mikeysklar
Thu Aug 18, 2022 5:25 pm
D52 in use with multiple SPI devices

by vhavard » Tue Aug 16, 2022 5:32 pm

Last post by vhavard « Wed Aug 17, 2022 4:22 pm

by vhavard » Tue Aug 16, 2022 5:32 pm

2 Replies

14 Views

Last post by vhavard
Wed Aug 17, 2022 4:22 pm
run-away sketch

by theoldfossil » Mon Aug 15, 2022 4:33 pm

Last post by adafruit_support_carter « Tue Aug 16, 2022 1:34 pm

by theoldfossil » Mon Aug 15, 2022 4:33 pm

1 Replies

16 Views

Last post by adafruit_support_carter
Tue Aug 16, 2022 1:34 pm
Metro M4 Express Beta

by GrmpyMan » Wed Aug 03, 2022 1:29 am

Last post by adafruit2 « Sat Aug 13, 2022 5:07 pm

by GrmpyMan » Wed Aug 03, 2022 1:29 am

8 Replies

64 Views

Last post by adafruit2
Sat Aug 13, 2022 5:07 pm
Issues with serial communication MacOS

by chmod777 » Fri Aug 12, 2022 6:27 pm

Last post by dastels « Fri Aug 12, 2022 6:47 pm

by chmod777 » Fri Aug 12, 2022 6:27 pm

1 Replies

37 Views

Last post by dastels
Fri Aug 12, 2022 6:47 pm
Extend onboard NEO pixel

by jamesOB » Sun Jul 31, 2022 4:06 am

Last post by dastels « Fri Aug 12, 2022 11:20 am

by jamesOB » Sun Jul 31, 2022 4:06 am

5 Replies

63 Views

Last post by dastels
Fri Aug 12, 2022 11:20 am
Metro M4 Express not recognized by PC

by eea213 » Thu Aug 11, 2022 8:34 am

Last post by dastels « Thu Aug 11, 2022 5:59 pm

by eea213 » Thu Aug 11, 2022 8:34 am

3 Replies

43 Views

Last post by dastels
Thu Aug 11, 2022 5:59 pm
Blink for Metro M0 using direct register manipulation

by MetroM0 » Fri Jul 29, 2022 2:46 am

Last post by MetroM0 « Thu Aug 11, 2022 5:27 pm

by MetroM0 » Fri Jul 29, 2022 2:46 am

12 Replies

145 Views

Last post by MetroM0
Thu Aug 11, 2022 5:27 pm
Bodmer's TFT_HX8357 Library on Grand Central

by 4Dopenroad » Fri Aug 05, 2022 8:40 pm

Last post by 4Dopenroad « Mon Aug 08, 2022 12:57 pm

by 4Dopenroad » Fri Aug 05, 2022 8:40 pm

2 Replies

36 Views

Last post by 4Dopenroad
Mon Aug 08, 2022 12:57 pm
Serial port on Metro ESP32-S2 Express

by simoniceberg » Wed Aug 03, 2022 5:31 am

Last post by mikeysklar « Wed Aug 03, 2022 4:12 pm

by simoniceberg » Wed Aug 03, 2022 5:31 am

1 Replies

23 Views

Last post by mikeysklar
Wed Aug 03, 2022 4:12 pm
Metro M4 Express not in board manager

by ElectronsAndSteel » Wed Jul 20, 2022 3:29 pm

Last post by adafruit_support_carter « Wed Jul 20, 2022 4:12 pm

by ElectronsAndSteel » Wed Jul 20, 2022 3:29 pm

1 Replies

77 Views

Last post by adafruit_support_carter
Wed Jul 20, 2022 4:12 pm
Matrix Portal M4 Circuitpython non blocking requests

by lmurdock12 » Sun Jul 17, 2022 4:57 am

Last post by mikeysklar « Mon Jul 18, 2022 8:14 pm

by lmurdock12 » Sun Jul 17, 2022 4:57 am

1 Replies

1553 Views

Last post by mikeysklar
Mon Jul 18, 2022 8:14 pm
Metro M4 Interrupt Priorities

by mdl96 » Fri Jul 15, 2022 4:45 pm

Last post by mdl96 « Mon Jul 18, 2022 3:59 pm

by mdl96 » Fri Jul 15, 2022 4:45 pm

2 Replies

1201 Views

Last post by mdl96
Mon Jul 18, 2022 3:59 pm
ISO C++ forbids converting a string constant to 'char*'

by cdwille » Thu Jul 14, 2022 3:42 pm

Last post by cdwille « Thu Jul 14, 2022 4:51 pm

by cdwille » Thu Jul 14, 2022 3:42 pm

2 Replies

74 Views

Last post by cdwille
Thu Jul 14, 2022 4:51 pm
adafruit metro board

by dirtyoledog » Sat Jul 02, 2022 12:12 am

Last post by dirtyoledog « Sat Jul 02, 2022 9:26 pm

by dirtyoledog » Sat Jul 02, 2022 12:12 am

10 Replies

703 Views

Last post by dirtyoledog
Sat Jul 02, 2022 9:26 pm
Feather M4 CAN

by DaveFil » Wed Jun 29, 2022 5:53 pm

Last post by mikeysklar « Thu Jun 30, 2022 3:33 pm

by DaveFil » Wed Jun 29, 2022 5:53 pm

1 Replies

41 Views

Last post by mikeysklar
Thu Jun 30, 2022 3:33 pm
Continuing issues with MetroM4 and LED backpacks

by Blazes946 » Sat Jun 25, 2022 9:03 am

Last post by dastels « Sun Jun 26, 2022 9:34 am

by Blazes946 » Sat Jun 25, 2022 9:03 am

5 Replies

60 Views

Last post by dastels
Sun Jun 26, 2022 9:34 am
Bootloader Source Code for Grand Central Board

by Bhindhiya » Wed Jun 15, 2022 5:16 am

Last post by User_UMjT7KxnxP8YN8 « Sun Jun 19, 2022 2:36 pm

by Bhindhiya » Wed Jun 15, 2022 5:16 am

3 Replies

77 Views

Last post by User_UMjT7KxnxP8YN8
Sun Jun 19, 2022 2:36 pm
Metro M4 Express Board not connecting to COM port

by smitlr » Mon Jun 06, 2022 2:51 pm

Last post by adafruit_support_carter « Thu Jun 16, 2022 2:18 pm

by smitlr » Mon Jun 06, 2022 2:51 pm

4 Replies

129 Views

Last post by adafruit_support_carter
Thu Jun 16, 2022 2:18 pm
Metro M4 Airlift Lite Sleep?

by asyork » Thu Jun 02, 2022 3:54 am

Last post by adafruit_support_mike « Mon Jun 13, 2022 6:24 pm

by asyork » Thu Jun 02, 2022 3:54 am

14 Replies

210 Views

Last post by adafruit_support_mike
Mon Jun 13, 2022 6:24 pm
Adafruit boards not working with arduino on Mac

by smitheken » Mon Jun 06, 2022 8:50 pm

Last post by freddyboomboom « Thu Jun 09, 2022 12:54 am

by smitheken » Mon Jun 06, 2022 8:50 pm

4 Replies

73 Views

Last post by freddyboomboom
Thu Jun 09, 2022 12:54 am
Need help with Adafruit_NeoPixel library

by voidtrance » Mon Jun 06, 2022 5:47 pm

Last post by adafruit_support_carter « Tue Jun 07, 2022 11:07 am

by voidtrance » Mon Jun 06, 2022 5:47 pm

8 Replies

59 Views

Last post by adafruit_support_carter
Tue Jun 07, 2022 11:07 am
Metro Mini 328 No COM Port

by dartronix » Thu Jun 02, 2022 8:44 pm

Last post by adafruit2 « Fri Jun 03, 2022 5:26 pm

by dartronix » Thu Jun 02, 2022 8:44 pm

4 Replies

80 Views

Last post by adafruit2
Fri Jun 03, 2022 5:26 pm
Power For Metro Mini

by Geosciences1 » Thu May 19, 2022 11:44 am

Last post by adafruit_support_mike « Wed Jun 01, 2022 11:22 pm

by Geosciences1 » Thu May 19, 2022 11:44 am

4 Replies

87 Views

Last post by adafruit_support_mike
Wed Jun 01, 2022 11:22 pm
Did I Brick My Arduino?

by asyork » Wed Jun 01, 2022 7:48 pm

Last post by asyork « Wed Jun 01, 2022 10:21 pm

by asyork » Wed Jun 01, 2022 7:48 pm

6 Replies

74 Views

Last post by asyork
Wed Jun 01, 2022 10:21 pm
Metro Mini not seen by Window10

by voidtrance » Mon May 30, 2022 11:43 pm

Last post by voidtrance « Tue May 31, 2022 5:51 pm

by voidtrance » Mon May 30, 2022 11:43 pm

4 Replies

50 Views

Last post by voidtrance
Tue May 31, 2022 5:51 pm
Grand Central M4 Express Power Supply Selection Circuit

by Aakash_Dey » Thu May 19, 2022 3:00 am

Last post by dastels « Fri May 20, 2022 9:55 am

by Aakash_Dey » Thu May 19, 2022 3:00 am

3 Replies

192 Views

Last post by dastels
Fri May 20, 2022 9:55 am
Memory types and uses

by PierreDeQuebec » Mon May 16, 2022 9:00 am

Last post by PierreDeQuebec « Mon May 16, 2022 11:07 am

by PierreDeQuebec » Mon May 16, 2022 9:00 am

2 Replies

79 Views

Last post by PierreDeQuebec
Mon May 16, 2022 11:07 am
Programming a custom designed SAMD51 board

by Bhindhiya » Tue May 10, 2022 8:07 am

Last post by adafruit_support_carter « Tue May 10, 2022 1:10 pm

by Bhindhiya » Tue May 10, 2022 8:07 am

1 Replies

63 Views

Last post by adafruit_support_carter
Tue May 10, 2022 1:10 pm
Difference between Adafruit's Metro M4 Express and Metro M4

by zaerth » Fri May 06, 2022 11:00 am

Last post by dastels « Fri May 06, 2022 12:20 pm

by zaerth » Fri May 06, 2022 11:00 am

1 Replies

73 Views

Last post by dastels
Fri May 06, 2022 12:20 pm
Metro esp32-s2 reset into uf2 bootloader from arduino code

by jonspieg » Sun May 01, 2022 7:45 am

Last post by User_UMjT7KxnxP8YN8 « Wed May 04, 2022 4:45 pm

by jonspieg » Sun May 01, 2022 7:45 am

6 Replies

110 Views

Last post by User_UMjT7KxnxP8YN8
Wed May 04, 2022 4:45 pm
i2c Problems - Solved Using Dinasour Arduino Uno?

by Shull327 » Tue May 03, 2022 11:17 am

Last post by adafruit_support_bill « Wed May 04, 2022 3:27 pm

by Shull327 » Tue May 03, 2022 11:17 am

3 Replies

70 Views

Last post by adafruit_support_bill
Wed May 04, 2022 3:27 pm
Metro M4 Express and SoftwareSerial

by AROTTER2 » Wed Apr 06, 2022 11:28 pm

Last post by dastels « Tue May 03, 2022 11:35 am

by AROTTER2 » Wed Apr 06, 2022 11:28 pm

3 Replies

126 Views

Last post by dastels
Tue May 03, 2022 11:35 am
Metro esp32-s2 serial

by muttstang » Tue May 03, 2022 9:28 am

Last post by muttstang « Tue May 03, 2022 11:24 am

by muttstang » Tue May 03, 2022 9:28 am

2 Replies

57 Views

Last post by muttstang
Tue May 03, 2022 11:24 am
Raspberry Pi400 keyboard

by Cocrn_11 » Sat Apr 23, 2022 3:41 pm

Last post by Cocrn_11 « Wed Apr 27, 2022 2:34 pm

by Cocrn_11 » Sat Apr 23, 2022 3:41 pm

5 Replies

94 Views

Last post by Cocrn_11
Wed Apr 27, 2022 2:34 pm
Metro M4 Express no longer recognized by computer

by Beamz » Mon Apr 11, 2022 3:08 pm

Last post by Beamz « Fri Apr 22, 2022 6:04 pm

by Beamz » Mon Apr 11, 2022 3:08 pm

12 Replies

188 Views

Last post by Beamz
Fri Apr 22, 2022 6:04 pm
I2C Metro M4 to Leonardo/Pro Micro

by blnkjns » Fri Apr 22, 2022 8:18 am

Last post by blnkjns « Fri Apr 22, 2022 2:47 pm

by blnkjns » Fri Apr 22, 2022 8:18 am

4 Replies

58 Views

Last post by blnkjns
Fri Apr 22, 2022 2:47 pm
Adafruit Grand Central M4 Express availability

by DaPhM » Fri Apr 15, 2022 9:07 am

Last post by DaPhM « Wed Apr 20, 2022 9:32 pm

by DaPhM » Fri Apr 15, 2022 9:07 am

8 Replies

147 Views

Last post by DaPhM
Wed Apr 20, 2022 9:32 pm
METRO M0 EXPRESS PMW

by tkoon24 » Sat Apr 16, 2022 2:12 pm

Last post by dastels « Sat Apr 16, 2022 3:15 pm

by tkoon24 » Sat Apr 16, 2022 2:12 pm

3 Replies

80 Views

Last post by dastels
Sat Apr 16, 2022 3:15 pm
Metro Mini 5v 3v Jumper

by benfarahmand » Fri Apr 15, 2022 3:15 pm

Last post by adafruit_support_bill « Fri Apr 15, 2022 3:57 pm

by benfarahmand » Fri Apr 15, 2022 3:15 pm

3 Replies

77 Views

Last post by adafruit_support_bill
Fri Apr 15, 2022 3:57 pm
Metro MIni Eagle library

by bobkost » Mon Apr 11, 2022 3:26 pm

Last post by westfw « Tue Apr 12, 2022 7:39 pm

by bobkost » Mon Apr 11, 2022 3:26 pm

5 Replies

73 Views

Last post by westfw
Tue Apr 12, 2022 7:39 pm
M4 Grand Central Pinout spreadsheet

by parsko » Tue Mar 29, 2022 10:17 am

Last post by parsko « Tue Apr 12, 2022 8:07 am

by parsko » Tue Mar 29, 2022 10:17 am

2 Replies

97 Views

Last post by parsko
Tue Apr 12, 2022 8:07 am
Looking for a board suggestion

by BURevisfan » Fri Apr 01, 2022 12:03 pm

Last post by blnkjns « Fri Apr 01, 2022 2:52 pm

by BURevisfan » Fri Apr 01, 2022 12:03 pm

1 Replies

415 Views

Last post by blnkjns
Fri Apr 01, 2022 2:52 pm
Metro M4 Matrix Shield and sound generation

by blnkjns » Tue Mar 29, 2022 12:44 am

Last post by blnkjns « Tue Mar 29, 2022 12:44 am

by blnkjns » Tue Mar 29, 2022 12:44 am

0 Replies

70 Views

Last post by blnkjns
Tue Mar 29, 2022 12:44 am
Metro M4 w/ DS3234

by Jl315 » Fri Mar 25, 2022 4:04 pm

Last post by adafruit_support_mike « Mon Mar 28, 2022 9:25 pm

by Jl315 » Fri Mar 25, 2022 4:04 pm

3 Replies

94 Views

Last post by adafruit_support_mike
Mon Mar 28, 2022 9:25 pm
Metro M0 and Arduino Scheduler.h Library: Warning: this inst

by firstdown77 » Sat Feb 19, 2022 5:33 pm

Last post by firstdown77 « Sun Mar 27, 2022 5:57 pm

by firstdown77 » Sat Feb 19, 2022 5:33 pm

4 Replies

103 Views

Last post by firstdown77
Sun Mar 27, 2022 5:57 pm

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