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by chegewara
Sun Feb 17, 2019 7:20 am
Forum: Showcase
Topic: esp32 - support for paragliders in air
Replies: 0
Views: 129

esp32 - support for paragliders in air

I am currently working on cool project. Since we are in beta test stage and my client announced his product in social media i asked him if i can show what we are working on. The project will help paragliders in the air to make decisions. Paragliders are using thermals (hot air) to fly long time (som...
by chegewara
Fri Feb 15, 2019 4:51 am
Forum: General Discussion
Topic: [answered] I2C issue, CLK is off
Replies: 3
Views: 178

Re: I2C issue, CLK is off

Thanks. My problems are caused by 2 factors: 1. ignorance or lack of knowledge, 2. max30100. Ive been told that i2c clock is not constant and depend on many factors like wiring, pull-up etc. My test was performed with max30100 and with floating i2c pins without pull-ups. Other i2c "sensors" i have a...
by chegewara
Fri Feb 15, 2019 4:42 am
Forum: ESP32 Arduino
Topic: Accessing BLE Mesh from Arduino Core
Replies: 1
Views: 123

Re: Accessing BLE Mesh from Arduino Core

Use arduino as component with esp-idf ble mesh branch.
by chegewara
Wed Feb 13, 2019 10:50 pm
Forum: ESP32 IDF
Topic: Delete folder and contents?
Replies: 3
Views: 118

Re: Delete folder and contents?

CFLAGS := -D_OXPEN_SOURCE=500
Typo on forum or in code?
by chegewara
Wed Feb 13, 2019 9:08 am
Forum: General Discussion
Topic: [answered] I2C issue, CLK is off
Replies: 3
Views: 178

[answered] I2C issue, CLK is off

I must be dumb and doing something wrong because it seems only i have this issue. Ive been trying to connect MAX30100 with arduino library and didnt work, so i connected logic analyzer. What i found that CLK with 100kHz setup is not exactly what i would have expected. Logic analyzer with 1MHz sampli...
by chegewara
Tue Feb 12, 2019 9:00 am
Forum: ESP32 IDF
Topic: BLE Characteristic Encryption
Replies: 1
Views: 127

Re: BLE Characteristic Encryption

Hi, when you are using ESP_GATT_PERM_READ_ENCRYPTED | ESP_GATT_PERM_WRITE_ENCRYPTED flags in characteristics permissions then, as you could see, at least pairing needs to be performed. In case encrypted connection cant be established you will be disconnected with GATT_INSUF_AUTHENTICATION error. Rem...
by chegewara
Tue Feb 12, 2019 7:59 am
Forum: ESP32 Arduino
Topic: Is bluetooth serial HUGE or am I doing something wrong
Replies: 1
Views: 133

Re: Is bluetooth serial HUGE or am I doing something wrong

Hi,
yes, bluetooth library is pretty big. Both, in flash and heap space consuming.

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