espressif

esp-idf

C2018–2026

espressif / esp-idf

esp-idf

Espressif IoT Development Framework. Official development framework for Espressif SoCs.

Robotics & IoT

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21Distinct people

24Mentions

1Explicit recommenders

19.5KGitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

Espressif IoT Development Framework. Official development framework for Espressif SoCs.

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

Without a doubt. I highly recommend Flutter though, it was a relative breeze! For the firmware, I would have gone with Linux + a higher level language, probably Golang, because…

chipweinberger used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.

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Also in these discussions

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year24 dated mentions

Observed mentions: 2018-07-07 20:55:05 UTC to 2026-10-21 18:56:08 UTC.

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	1	0	1
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	1	0	1
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	0	0	0
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	2	0	2
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	4	2	2
2023	2023-01-01 00:00:00 UTC	2024-01-01 00:00:00 UTC	7	0	7
2024	2024-01-01 00:00:00 UTC	2025-01-01 00:00:00 UTC	5	1	4
2025	2025-01-01 00:00:00 UTC	2026-01-01 00:00:00 UTC	3	0	3
2026 (partial)	2026-01-01 00:00:00 UTC	2027-01-01 00:00:00 UTC	1	0	1

What Hacker News says

24 sources

hasheddan·Oct 21, 2026

Fun fact: esp-idf includes an x509 Certificate Bundle API[0] that will pull in the entire Mozilla trust store by default. However, they will be stripped unless firmware calls `esp_crt_bundle_attach`. There is an issue[1] tracking removal of the eMudhra root CA certificate. [0] https://docs.espressif.com/projects/esp-idf/en/latest/esp32/... [1] https://github.com/espressif/esp-idf/issues/19282

In Your MCU likely escaped the eMudhra intermediate CA compromise

shoelessone·Apr 30, 2025

Any chance you could explain this to somebody who is just learning about HID and has run this example: https://github.com/espressif/esp-idf/tree/master/examples/pe... ? "non-boot protocol" I'm guessing is the key here? I don't have a super deep understanding of HID or what the "boot-protocol" refers to.

In Espressif's ESP32-C5 Is Now in Mass Production

akx·Mar 11, 2025

The researcher-or-tinkerer who wants to play with these commands can just not upgrade to the newer ESP-IDF. Or update to a newer ESP-IDF, and revert the patch. It's open source. https://github.com/espressif/esp-idf

In ESP32 Undocumented Bluetooth Commands: Clearing the Air

Jeija·Feb 18, 2025

See https://github.com/espressif/esp-idf/issues/9843

In Espargos: ESP32-based WiFi sensing array

chipweinberger·Nov 11, 2024

Very custom. By now there is are good USB-MIDI examples and Espressif USB support has come a long way in the past couple years. modern ESP-IDF: https://github.com/espressif/esp-idf/pull/12566 versus 3 years ago: https://github.com/chipweinberger/xesp-usbh

In Show HN: I made a tiny device for automatically recording digital pianos

chipweinberger·Nov 11, 2024

It was a workaround for a crash: https://github.com/espressif/esp-idf/issues/8702 In theory it should be fixable now.

In Show HN: I made a tiny device for automatically recording digital pianos

chipweinberger·Nov 11, 2024Recommendation phrase

Without a doubt. I highly recommend Flutter though, it was a relative breeze! For the firmware, I would have gone with Linux + a higher level language, probably Golang, because my iteration loop was almost 2 minutes w/ C & esp32. Way too long. But at least it made the product very power efficient, and a bit cheaper. Btw, you should follow the hot reload thread on Github for ESP-IDF: https://github.com/espressif/esp-idf/issues/12642

In Show HN: I made a tiny device for automatically recording digital pianos

hasheddan·Jul 11, 2024Submission

Esp-Idf v5.3 Includes ESP32-P4 Support

2 points · Open discussion

05·May 25, 2024

The BT stack is based on Bluedroid, so that’s open source (up to the driver I’d guess); see here https://github.com/espressif/esp-idf/tree/master/components/...

In Reverse engineering ESP32 Wi-Fi driver: the road ahead

leptons·Dec 7, 2023

ugh.. arduino. Better to start with ESP-IDF, there's a pretty full featured well documented web server, and a lot more. https://github.com/espressif/esp-idf/tree/master/examples/pr...

In Unveiling secrets of the ESP32: creating an open-source MAC layer

jcalvinowens·Nov 5, 2023

An HTTPS server with esp-idf is absolutely trivial: https://github.com/espressif/esp-idf/blob/b4268c874a4cf8fcf7... The software support is incredible IMHO, it's a huge reason to use these chips. I made some toy temperature sensors with an esp32 last year, they make it so easy: https://github.com/jcalvinowens/tempsensor

In Website hosted on ESP32

londons_explore·Aug 9, 2023

The ULP coprocessor only claims a power consumption of 150 uA (which is huge compared to actual low power devices - EFM32, which is an ARM Cortex M3 MCU, runs on just 1.45 uA) Combine that with the fact users see real power consumption up at 450 uA [1], you won't be writing a program that lasts more than about 3 weeks on a regular CR2032 coin cell. [1]: https://github.com/espressif/esp-idf/issues/7882

In Low-cost Smartwatch powered by ESP32 module

Reventlov·Jun 15, 2023

The latest, but it was a few months ago. The results were off by 50 meters or so, and many persons have the same problems : https://github.com/espressif/esp-idf/issues/8976

In ESP32-C3 Wireless Adventure: A Comprehensive Guide to IoT [pdf]

MegaDeKay·Feb 4, 2023

Whoa. You can also use their ecosystem to put together a Thread border router! I think your HomePod might integrate that functionality already, but this is super interesting for someone like me and my old trusty Asus wifi router. https://github.com/espressif/esp-idf/tree/master/examples/op...

In ESP32 Buyer’s Guide: Different Chips, Firmware, Sensors

knaik94·Feb 4, 2023

It was actually launched in Jan 2023. It's been mostly out of stock, but a bare module with 4mb spi flash is in stock right now. However, currently populated dev boards are overpriced. https://www.adafruit.com/product/5670 edit: I'd wait to buy it regardless, software and sdk is still under active development. https://github.com/espressif/esp-idf/issues/10423 https://www.reddit.com/r/esp32/comments/10pkuin/esp32c6_real...

In ESP32 Buyer’s Guide: Different Chips, Firmware, Sensors

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