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Title PCN No. Released Date Proposed Date of Change Proposed Date of First Shipment Download
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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