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Title PCN No. Released Date Proposed Date of Change Proposed Date of First Shipment Download
Upgrade of ESP32-C3FH4X Product PCN20240702 2024.09.09 2024.10.15 2024.10.28
Upgrade of ESP32-C6 Series Products PCN20240701 2024.08.06 2024.10.06 2024.11.06
Upgrade ESP32-S2 Series Products Based on ESP32-S2FH4 PCN20240602 2024.07.02 2024.09.02 2024.10.02
ShieldCoverMarkingChangeforESPModules PCN20240301 2024.03.28 2024.04.15 2024.04.30
UpgradeESP32-C2 (ESP8684) SeriesProductsfromChipRevisionv1.1toChipRevisionv1.2 PCN20231102 2024.01.23 2024.02.23 2024.03.23
BOM Change for Several ESP8685-Based Modules PCN20240101 2024.01.08 2024.03.08 2024.04.08
Shield Cover Marking Change for ESP32-C3-MINI-1 Modules PCN20231202 2023.12.20 2023.12.31 2024.01.10
Delete Common AT Firmware on ESP32-C3 Series Modules from Manufacture Line PCN20231103 2023.12.20 2024.01.10 2024.01.30
Upgrade Chip Revision of ESP32-S2 Series Products Based on ESP32-S2FH2 PCN20231201 2023.12.05 2023.12.31 2023.12.31
Upgrade Chip Revision of ESP32-C6 Series Products PCN20231101 2023.11.01 2023.11.16 2023.12.10
Shield Cover Marking Change for ESP32-S3 Series Modules PCN20230802 2023.08.30 2023.09.30 2023.10.15
Upgrade ESP32-C2 (ESP8684) Series from Chip Revision v1.0 to Chip Revision v1.1 PCN20230701 2023.08.24 2023.10.24 2023.11.24
Upgrade Chip Revision of ESP32-S2 Series Products Based on ESP32-S2 PCN20230702 2023.07.28 2023.09.28 2023.11.01
Upgrade Chip Revision of ESP32-S2 Series Products Based on ESP32-S2R2 and ESP32-S2FN4R2 PCN20230601 2023.06.29 2023.08.29 2023.09.29
Espressif Chip Product Packaging Label Format Change PCN20230502 2023.06.16 2023.06.21 2023.07.01
Remove Hall Sensor from ESP32 Series of Documentation PCN20221202 2023.01.09 2023.01.27 2023.01.27
BOM Change for ESP32-C3-WROOM-02U PCN20221201 2022.12.30 2023.01.14 2023.01.20
Remove "antenna diversity" Feature of Bluetooth LE in ESP32-S3, ESP8685, ESP32-C3 Chip Datasheets PCN20221203 2022.12.23 2022.12.29 2022.12.29
Remove "External power amplifier support" Feature in ESP32-S2, ESP32-S3, ESP8684, ESP8685, ESP32-C3 Chip Datasheets PCN20221102 2022.12.01 2022.12.14 2022.12.14
Upgrade Chip Revision of ESP32 Series Products PCN20220901 2022.10.25 2022.12.25 2023.01.25
BOM Change for ESP32-S3-WROOM-2 PCN20220802 2022.09.30 2022.10.14 2022.10.30
Release ESP32-C3-MINI-1 module Default Common AT firmware V2.4.2.0 PCN20220902 2022.09.29 2022.10.15 2022.12.16
Upgrade Chip Revision of ESP32-S3 Series Products PCN20220602 2022.08.11 2022.08.20 2022.11.11
Upgrade Chip Revision of ESP32-C3 Series Products from Chip Revision 3 to Chip Revision 4 PCN20220101 2022.04.02 2022.04.30 2022.06.15
Upgrade Manufacturer Part Number and Laser Marking of Espressif Module PCN-2021-030 2021.12.22 2022.01.10 2022.01.25
Shield Cover Marking Change for Espressif Modules PCN-2021-028 2021.11.18 2021.11.30 2021.12.15
Release ESP32-MINI-1 / ESP32-MINI-1U Module Default Common AT Firmware V2.2.0.0 PCN-2021-027 2021.10.22 2021.11.23 2021.12.03
Espressif Common AT Firmware is not Flashed to ESP32-S2 & ESP8266 (16MB flash) Series of Modules by Default from the Manufacturing Line PCN-2021-026 2021.10.22 2022.01.05 2022.01.22
The PCB EPAD Vias are Changed to be Double-sided Plugged for ESP32-WROVER-E/IE PCN-2021-025 2021.10.22 2021.11.25 2021.12.25
Espressif Chip Product Packing Label Format Change PCN-2021-024 2021.09.23 2021.10.01 2021.10.11
Change the series resistor specification of the 40MHz crystal for ESP32 (-40°C~105°C) modules PCN-2021-023 2021.09.10 2021.09.24 2021.09.24
Upgrade ESP32-U4WDH to a Dual-Core Processor Product PCN-2021-021 2021.09.02 2021.12.02 2021.12.02
Update ESP32 (4MB flash) series modules AT firmware version to V2.1.0.0 PCN-2021-010 2021.04.12 2021.06.12 2021.07.12
Espressif common AT firmware is not flashed to ESP32 series of modules (8MB/16MB flash) by default from the manufacturing line PCN-2021-005 2021.04.12 2021.04.30 2021.05.28
Upgrading the label format, updating KCC ID for ESP32-WROOM-32D and filling the thermal pad with solder mask for ESP32-WROOM-32D & ESP32-WROOM-32U PCN-2021-009 2021.04.10 2021.04.25 2021.04.25
Shield Cover Marking Change for ESP Modules PCN-2021-008 2021.03.16 2021.03.19 2021.03.23
KCC Certification ID and Identification Changes for ESP32-WROOM-32/32D/32U, ESP32-WROVER-B/IB, ESP32-SOLO-1, and ESP-WROOM-02/02U Modules PCN-2020-017 2020.11.17 2020.11.16 2020.12.16
Changes of the marking on ESP32-WROVER-E and ESP32-WROVER-IE to add new certification identification PCN-2020-016 2020.11.06 2020.10.28 2021.01.28
Introduction of AT firmware V2.1.0.0 as the first published AT firmware for ESP32-S2 series Modules and DevKits PCN-2020-014 2020.09.11 2020.09.11 2020.12.11
Change of module from ESP32-WROVER-B to ESP32-WROVER-E on ESP32-LyraT, ESP32-LyraTD- MSC, and ESP32-LyraT-Mini PCN-2020-013 2020.08.28 2020.08.28 2020.11.28
Strengthening the ESP8266/ESP32/ESP32-S2 Module Series Tape Reel by Embossing Cross Patterns at the Bottom of each Tray PCN-2020-008 2020.08.17 2020.08.17 2020.09.14
ESP8266 modules AT bin upgrade to V1.7.3 PCN-2020-004 2020.04.26 2020.04.26 2020.07.16
ESP8266EX Chip Datasheet Amendments PCN-2020-003 2020.03.31 2020.04.01 2020.04.02
ESP8285 Series Chip Datasheet Amendments PCN-2020-002 2020.03.31 2020.04.01 2020.04.02
ESP32-WROVER-B Datasheet Amendments PCN-2020-001 2020.03.18 2020.03.23 2020.04.01
Adding a QR code to the shielding case of ESP-WROOM-02/ESP32-WROOM-32/ESP32-WROVER PCN-03-2019120301 2019.12.02 2020.12.05 2020.02.20
ESP32 Series Products Technical Document Change PCN-02-20190815 2019.11.01 2019.11.01 2019.11.01
ESP8266 Series Chip Product Technical Document Change PCN-02-20190716 2019.08.01 2019.07.16 2019.08.01
Add a 6-bit Code on Labels of all Modules to Indicates its Operating Temperature and Flash Size (International version) PCN-03-2019070102 2019.07.12 2019.07.12 2019.07.15
Add a 6-bit Code on Labels of all Modules to Indicates its Operating Temperature and Flash Size (China domestic version) PCN-03-2019070101 2019.07.12 2019.07.12 2019.07.15
ESP8285 Datasheet Change PCN-04-20190625 2019.06.25 2019.08.25 2019.08.28
QR Code Information Change for ESP32-WROVER-B Modules PCN-03-2019060501 2019.06.12 2019.06.12 2019.06.19
Upgrading AT Firmware for ESP32 Modules PCN-03-2019011001 2019.04.10 2019.01.10 2019.04.10
Packaging Changes to Espressif Modules PCN-03-20190215 2019.03.08 2019.02.15 2019.03.08
AT Bin Version Upgrade For ESP8266 Modules PCN-03-2018112601 2019.01.26 2018.11.26 2019.01.26
Updating the Datasheets of the ESP32 Series of Products PCN-03-20190121 2019.01.21 2019.01.21 2019.01.21
AT Bin Upgrade for ESP32 Series Module PCN-03-2018083001 2018.11.30 2018.08.30 2018.11.30
Updating the Operating Temperature Information in the ESP32-WROVER Datasheet and Changing the C18 Capacitor PCN-03-201800921 2018.11.06 2018.11.06 2018.12.06
Notice of Customized China Label for All Espressif Modules PCN-03-201800921 2018.10.19 2018.10.12 2018.10.19




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