Search found 14 matches

by digsub
Mon Dec 28, 2020 10:36 am
Forum: ESP-IDF
Topic: 'esp_wifi_get_inactive_time' was not declared in this scope
Replies: 1
Views: 5334

'esp_wifi_get_inactive_time' was not declared in this scope

ESP-IDF function esp_wifi_get_inactive_time() is found in esp_wifi.h, but code below won't compile in Arduino IDE 1.8.13 due to 'esp_wifi_get_inactive_time' was not declared in this scope other functions in esp_wifi.h e.g. esp_wifi_set_bandwidth() are fine. Checked spelling, conflicts, etc & I can't...
by digsub
Wed Dec 09, 2020 10:54 am
Forum: ESP-IDF
Topic: WIFI_STA mode for FCC co-location testing
Replies: 5
Views: 5060

Re: WIFI_STA mode for FCC co-location testing

Ouch! Without external radio coexistence interface control, my hopes appear to be dashed. I considered using WIFI_OFF to turn off all Wi-Fi transmission (any pending tx on the lower layer, IP stack, etc) until I had fresh sensor data to send. Disconnecting-reconnecting WiFi, however, is messy and in...
by digsub
Tue Dec 08, 2020 12:26 pm
Forum: ESP-IDF
Topic: WIFI_STA mode for FCC co-location testing
Replies: 5
Views: 5060

Re: WIFI_STA mode for FCC co-location testing

Thanks WiFive. The FCC statement for ESP32 says The antenna(s) used for this device must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located with any other transmitters, except in accordance with FCC multi-transmitter product procedures. TX2's ...
by digsub
Sun Dec 06, 2020 2:34 pm
Forum: ESP-IDF
Topic: WIFI_STA mode for FCC co-location testing
Replies: 5
Views: 5060

WIFI_STA mode for FCC co-location testing

My product incorporates an ESP32 transmitting UDP Wi-Fi (BT is off) and a second co-colocated transmitter TX2 with functions TX2_ON() & TX2_OFF() that turn TX2 transmission on/off immediately. Now to avoid major $$$ FCC co-location testing, I must insure that both transmitters are mutually dependent...
by digsub
Sun Dec 06, 2020 8:33 am
Forum: Hardware
Topic: Failed ESP32 FCC testing
Replies: 3
Views: 4733

Re: Failed ESP32 FCC testing

I've contacted sales, but I am still awaiting additional information.
by digsub
Thu Dec 03, 2020 1:24 pm
Forum: Hardware
Topic: Failed ESP32 FCC testing
Replies: 3
Views: 4733

Failed ESP32 FCC testing

My device incorporating an ESP-WROOM-32 module has initially failed FCC Part 15 Unintentional Radiator Testing. Spurious emissions at the second harmonic are significantly higher than Espressif's original FCC test report and out of tolerance. Espressif's FCC test report (pg 7) says "The worst condit...
by digsub
Thu Nov 26, 2020 7:00 pm
Forum: Hardware
Topic: FCC testing for Motion Detector with ESP-WROOM-32
Replies: 2
Views: 3177

Re: FCC testing for Motion Detector with ESP-WROOM-32

That's helpful! Is there any official guidance?
by digsub
Thu Nov 26, 2020 3:57 pm
Forum: Hardware
Topic: FCC testing for Motion Detector with ESP-WROOM-32
Replies: 2
Views: 3177

FCC testing for Motion Detector with ESP-WROOM-32

My end product prepped for resale is a Motion Detector (DT100) interfaced to an ESP-WROOM-32 module. The ESP-WROOM-32 simply takes data from the DT100 RJ45 RX/TX pin-out via Serial-to-TTL and then transmits via Wi-Fi. Other than that connection and sharing 5V power across CAT5, the modules are uncha...
by digsub
Wed Feb 27, 2019 8:51 am
Forum: ESP-IDF
Topic: TCP Slow, then disconnects, UDP Slow
Replies: 8
Views: 12348

Re: TCP Slow, then disconnects, UDP Slow

My prototype with Sparkfun ESP32 thing seems to have room for TCP/UDP improvement and Sparkfun tech support had no info.

So, any update on this issue concerning Sparkfun ESP32 thing or other boards such as Adafruit Huzzah32 or WEMOS LoLin32?

btw I'm using the Arduino IDE not ESP-IDF.

Thanks.
by digsub
Wed Apr 18, 2018 9:51 am
Forum: ESP-IDF
Topic: Wake up lag in Bluetooth audio path
Replies: 0
Views: 2608

Wake up lag in Bluetooth audio path

I've replicated the ESP32 Web Radio project by MrBuddyCasino using an ESP32 Dev Board and Adafruit MAX98357A Breakout #3006 such that continuous music streamed from my Android phone to ESP_SPEAKER sounds fine. My issue, however, is that short, intermittent sound clips from the phone are initially so...