ADC_ATTENUATION_11_DB is deprecated, use ADC_ATTENUATION_12_DB instead.

Page Advanced build system tricks (Deprecated)

See Advanced Build System Tricks on the RIOT Guide Site for the latest information. This page will be removed after release 2025.11.

Page Build In Docker (Deprecated)

This page is deprecated. See Build in Docker on the RIOT Guide Site for the latest information. This page will be removed after release 2025.11.

Page Build System Basics (Deprecated)

See Build System Basics on the RIOT Guide Site for the latest information. This page will be removed after release 2025.11.

Global coap_hdr_get_token (const coap_hdr_t *hdr)

This function was introduced to keep legacy code alive. Introducing new callers should be avoided. In the RX path an coap_pkt_t will be available, so that you can call coap_get_token instead. In the TX path the token was added by us, so we really should know.

Global coap_hdr_get_token_len (const coap_hdr_t *hdr)

This function was introduced to keep legacy code alive. Introducing new callers should be avoided. In the RX path an coap_pkt_t will be available, so that you can call coap_get_token instead. In the TX path the token was added by us, so we really should know.

Global coap_hdr_len (const coap_hdr_t *hdr)

This function was introduced to keep legacy code alive. Introducing new callers should be avoided. In the RX path an coap_pkt_t will be available, so that you can call coap_get_total_hdr_len instead. In the TX path the header was created by us (e.g. using coap_build_hdr which returns the header size), so we really should know already.

Page Code of Conduct Information (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Global CONFIG_GNRC_IPV6_STATIC_LLADDR_IS_FIXED

Will be removed after release 2025.07 - after this the static link-local address will always be fixed unless a use-case for the auto-increment can be found.

Page Creating an application (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Creating modules (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Debugging Tools (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Emulators (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page FAQ (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Flashing via RIOT's Build System (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Getting started

See Setup Guide on the RIOT Guide Site for the latest information. This section will be removed after release 2025.11.

See The Build System on the RIOT Guide Site for the latest information. This section will be removed after release 2025.11.

See Building and executing an example on the RIOT Guide Site for the latest information. This section will be removed after release 2025.11.

See Setup Guide or Build in Docker on the RIOT Guide Site for the latest information. This section will be removed after release 2025.11.

Global GNRC_NETTYPE_LORAWAN

LoRaWAN payloads do not have a special type anymore and just use GNRC_NETTYPE_UNDEF. Will be removed after 2024.10 release.

Page Hints for quicker & better RIOT development (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page IO-Mapping and Shields (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Kconfig in RIOT (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Module net_gnrc_nettype_lorawan

LoRaWAN payloads do not have a special type anymore and just use GNRC_NETTYPE_UNDEF. There is no module needed for that. This module will be removed after 2024.10 release.

Global NETDEV_EVENT_TX_COMPLETE_DATA_PENDING

Issue an NETDEV_EVENT_TX_COMPLETE event instead and pass the data pending info in netdev_driver_t::confirm_send via the info parameter

Global NETDEV_EVENT_TX_MEDIUM_BUSY

Issue an NETDEV_EVENT_TX_COMPLETE event instead and return -EBUSY in netdev_driver_t::confirm_send.

Global NETDEV_EVENT_TX_NOACK

Issue an NETDEV_EVENT_TX_COMPLETE event instead and return -EHOSTUNREACH in netdev_driver_t::confirm_send. Via the info parameter additional details about the error can be passed

Global netdev_ieee802154_dst_filter (netdev_ieee802154_t *dev, const uint8_t *mhr)

This function is currently deprecated and will be removed after Release 2022.01. Use ieee802154_dst_filter instead.

Global pcf857x_error_codes_t

These are aliases for errno error codes now, use them directly

Page Porting boards (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Module pseudomodule_sema_deprecated

Will be removed after 2021.07 release.

Page Release cycle (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Reporting Guidelines (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page RIOT Vision (Deprecated)

See Vision on the RIOT Guide Site for the latest information. This page will be removed after release 2025.11.

Global RIOT_FILE_NOPATH

This macro will be removed after the 2025.10 release. Use the compiler builtin __FILE_NAME__ instead (GCC 12+, clang 9+)

Global RIOT_FILE_RELATIVE

This macro will be removed after the 2025.10 release. Use the compiler builtin __FILE__ instead (GCC 8+, clang 10+)

Global RIOT_MCU

Use RIOT_CPU instead. This will be removed soonest in release 2025.04

Page Roadmap (Deprecated)

Roadmap has moved to the Guide Site. This page will be removed after release 2026.04.

Global saul_class_to_str (const uint8_t class_id)

Use saul_class_print or saul_class_write instead

Global sema_wait_timed (sema_t *sema, uint64_t timeout)

Will be removed after release 2021.07

Global SPIClass::setBitOrder (uint8_t order)

This function is deprecated in the official Arduino API, so it is a good idea to not use it. In RIOT, this function is not yet scheduled for removal to allow using Arduino libraries using it.

Global SPIClass::setClockDivider (uint8_t divider)

This function is deprecated in the official Arduino API, so it is a good idea to not use it. In RIOT, this function is not yet scheduled for removal to allow using Arduino libraries using it.

Global SPIClass::setDataMode (uint8_t mode)

This function is deprecated in the official Arduino API, so it is a good idea to not use it. In RIOT, this function is not yet scheduled for removal to allow using Arduino libraries using it.

Module sys_xtimer

xtimer has been deprecated in favor of the ztimer high level timer abstraction layer

Page Terminal programs configuration (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Global THREAD_CREATE_STACKTEST

will be removed after 2025.07 release

Global UNIT_G

, use UNIT_G_FORCE instead

Global UNIT_GR

, use UNIT_GRAM instead

Global UNIT_GS

, use UNIT_GAUSS instead

Page Using C++ in RIOT (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Page Using Rust in RIOT (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2025.11.

Page Writing a Device Driver in RIOT (Deprecated)

Guides have moved to the Guide Site. This page will be removed after release 2026.04.

Global xtimer_nanosleep (uint32_t nanoseconds)

This function is deprecated as no XTIMER backend is currently configured to run at more than 1 MHz, making nanoseconds accuracy impossible to achieve.