Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

analoglamb
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Joined: Thu Oct 13, 2016 5:53 am

Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby analoglamb » Thu Sep 07, 2017 10:00 am

Recently I got the Esp32-PICO-D4 chip. It is a SIP, all esp32 modules components are included in a single ESP32-PICO-D4 chip.
OK Have look at it.

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ESP32 Chip, Module, Development board! Go: http://analoglamb.com/shop/esp32

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loboris
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Re: Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby loboris » Thu Sep 07, 2017 10:32 am

If you are from AnalogLamb, is AnalogLamb planning to sell ESP32-PICO-D4 and/or the board based on it ?

By the way, on the ESP32-WROVER ALB32R Breakout board AnalogLamb forgot to include pull-up resistors on IO0 & Reset (EN) pins :o

analoglamb
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Re: Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby analoglamb » Fri Sep 08, 2017 2:05 am

Hi,

Thanks. It is on bottom side of boards. Here is the sch. Thanks
https://github.com/AnalogLamb/esp32/blo ... eakout.pdf
ESP32 Chip, Module, Development board! Go: http://analoglamb.com/shop/esp32

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loboris
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Re: Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby loboris » Fri Sep 08, 2017 7:54 am

This is not the schematics of the board I've got with ALB32-WROVER. It is a simple breakout board, with no active components and no pull-up resistors.
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ESP_igrr
Posts: 2072
Joined: Tue Dec 01, 2015 8:37 am

Re: Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby ESP_igrr » Fri Sep 08, 2017 8:47 am

At least there is an "R1" label on the silkscreen ;)

analoglamb
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Joined: Thu Oct 13, 2016 5:53 am

Re: Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby analoglamb » Mon Sep 11, 2017 4:29 am

loboris wrote:This is not the schematics of the board I've got with ALB32-WROVER. It is a simple breakout board, with no active components and no pull-up resistors.
ImageImage

Yes, You are right. There is no resistor. It is a breakout for esp32-wroom. But my pic is a breakout for esp32-wrover. We will improve it.

Thanks for your feedback.
ESP32 Chip, Module, Development board! Go: http://analoglamb.com/shop/esp32

ESP_Angus
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Joined: Sun May 08, 2016 4:11 am

Re: Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby ESP_Angus » Mon Sep 11, 2017 6:17 am

analoglamb wrote: Yes, You are right. There is no resistor. It is a breakout for esp32-wroom. But my pic is a breakout for esp32-wrover. We will improve it.
Hi analoglamb,

If you're updating your breakout designs, please consider adding capacitors (a 100nF decoupling & 10uF or more of bulk capacitance) to VCC. A large number of bug reports (flashing errors, random resets, etc.) are caused by breadboard breakouts like these which do not include any capacitance.

Consult the ESP-WROOM32 module datasheet "Figure 2: ESP-WROOM-32 Peripheral Schematics" for a suggested circuit.

If you are able to increase the bulk capacitor to a higher value than shown, up to 100uF or so, then this will further improve reliability with breadboard power connections. Use a low ESR type like a ceramic or tantalum capacitor.

A lot of your users (plus me) will be very grateful. :)


Angus

analoglamb
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Re: Got sample of ESP32-PICO-D4 - All ESP32 Module components Inside

Postby analoglamb » Tue Nov 07, 2017 11:18 am

Thanks. We will update the breakout boards. Breakout is development board
ESP32 Chip, Module, Development board! Go: http://analoglamb.com/shop/esp32

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