Lup Yuen Lee 李立源 @lupyuen@qoto.org

Remember to update the #NuttX defconfig files when we modify Kconfig! ... I bake sourdough while waiting for the Pull Request Workflow to complete 😂

Article: https://lupyuen.github.io/articles/pr?88#notes

How we receive Phone Calls and SMS on #PinePhone

Article: https://lupyuen.github.io/articles/lte2?10#appendix-receive-phone-call-and-sms

#PinePhone as Feature Phone with Apache #NuttX RTOS ... How will it look? 🤔

https://lupyuen.github.io/articles/usb2#pinephone--nuttx--feature-phone

PDU Mode is more precise than Text Mode ... For sending SMS on #PinePhone

Article: https://lupyuen.github.io/articles/lte2?8#sms-text-mode-vs-pdu-mode

Sourdough Sandwich

#PinePhone SMS Messages are encoded in Unicode UTF-16

Article: https://lupyuen.github.io/articles/lte2?15#appendix-sms-pdu-message-encoding

PDU Encoding for #PinePhone SMS ... According to ETSI GSM 03.40

Article: https://lupyuen.github.io/articles/lte2?12#appendix-sms-pdu-format

Sending #PinePhone SMS in PDU Mode looks complicated ... But it's more precise than Text Mode

Article: https://lupyuen.github.io/articles/lte2?7#send-sms-in-pdu-mode

Sending an SMS (in Text Mode) on #PinePhone

Article: https://lupyuen.github.io/articles/lte2?6#send-sms-in-text-mode

2 quirky SIM Cards on #PinePhone ... Might be caused by 4G LTE IMS (IP Multimedia Subsystem) 🤔

Article: https://lupyuen.github.io/articles/lte2?88#appendix-troubleshoot-lte-ip-multimedia-subsystem

Let's make a Phone Call on #PinePhone ... With Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/lte2?5#outgoing-phone-call

Found the missing manual for #PinePhone "AT+QCFG" Commands ... Good for LTE IMS troubleshooting 🤔

Source: https://github.com/lupyuen/lupyuen.github.io/blob/master/images/Quectel_EC2x&EG2x&EG9x&EM05_Series_QCFG_AT_Commands_Manual_V1.0.pdf

Wholemeal Sourdough with Bread Machine

Recipe: https://gist.github.com/lupyuen/3272756eb8b93ebbcf23b92e13f3bfa9

Before making a Phone Call on #PinePhone … Let's check if the 4G LTE Network is OK

Article: https://lupyuen.github.io/articles/lte2?4#check-the-lte-network

Here's how we send an AT Command to #PinePhone's 4G LTE Modem ... With Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/lte2?3#send-at-commands

Here's how we start #PinePhone's LTE Modem ... With Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/lte2?3#start-lte-modem

Inside #PinePhone is the Quectel EG25-G 4G LTE Modem ... Let's make some calls and send some messages!

Article: https://lupyuen.github.io/articles/lte2?2#quectel-eg25-g-lte-modem

Let's make Phone Calls and send Text Messages on #PinePhone ... With Apache #NuttX RTOS!

Article: https://lupyuen.github.io/articles/lte2?1

Inside an SMS PDU Packet ... According to ETSI GSM 03.40

Source: https://github.com/lupyuen/pinephone-nuttx#sms-pdu-format

Apache #NuttX RTOS now supports CBOR Encoding 👍

Source: https://github.com/apache/nuttx-apps/pull/1725