New open source hardware board ESP32-S2-DevKit-Lipo breaks our internal record for ESP32 low power consumption

Screenshot from 2020-05-18 11-46-43

ESP32-S2 is new SOC from Espressif which has only WiFi connectivity but has much more GPIOs available than ESP32 and ESP8266, also it has USB native connection which opens lot of new possibility.

We already sell Espressif’s Saola-1R board which has ESP32-S2-WROVER module, but it’s not designed for battery operation and low power as uses general purposes LDOs and has no battery connection.

This is something we wanted to improve – we designed board with same module but add LiPo charger and now our ESP32-S2-DevKit-LiPo can operate on LiPo battery even when there is no external power supply, but on top of this we kept the same PCB dimensions and ESP32-S2-DevKit-Lipo is drop-in replacement for ESP32-S2-Saola-1R. We use same module with 2MB RAM and 4MB Flash so once you develop with Saola you can move to ESP32-S2-DevKit-Lipo and make your projects battery operated.

The new ESP32-S2-DevKit-Lipo uses ultra low power power supply circuit which makes current consumption during sleep only 6uA  (4uA of them are due to the battery measurement resistor divider) this is 10 times less than our other boards.

Prototypes are build now and we run production and will have these in stock by the beginnings of June.

PIC32-Pinguino Open Source hardware board is on the cover of Electronic music vinyl

Screenshot from 2020-05-18 09-00-50

We got note from friend that our PIC32-Pinguino is on the cover of Belgium artists Phillipi & Rodrigo – “Gueto De Gent” Vinyl album. The genre is Electronic/Disco. You can hear it here:

 

Maybe the authors are also Makers and like to make electronic projects?

 

ESD safe, powerful 65W soldering iron with LCD display, digital PID temperature adjustment 250-480C in stock

ATN-ST2065D

ATN-SLD2065D is professional grade, powerful 65W soldering iron with digital PID temperature control and ceramic heater element for fast heating. Build in motion sensor enter sleep mode if the soldering iron is not moved for more than 10 minutes and completely shutdown after 20 minutes of non activity.

It has LCD display, power and +- buttons, LED status indicator and heats fast.

For these who are familiar with TS100 soldering iron,  ATN-SLD2065D is similar but with much more power and allow even bigger PTH components to be soldered quick and easy.

The soldering iron comes by default with one ATN-T900-B solder tip which is good for PTH components soldering and rework, but we also offer 4 more different tips which are good for normal and fine pitch SMT components soldering.

The ATN-T900 soldering tips are with professional grade excellent plating, which allow long lasting work, but they also are priced very competitive. For comparison ERSA and  Weller soldering tips which are with same grade plating cost EUR 6-12. We use ATN-T900 in our daily production and they are very good choice as price/performance, the normal low grade soldering tips do not last more than couple of days with intensive work at our factory. ATN-T900 lasts for about month, for the about same time ERSA/Weller tips also wear off at intensive work.

The ATN-SLD2065D-HS are ceramic heaters with long life and very competitive price,  ATN-SLD2065D auto detects broken heater and signals for exchange.

With their good pricing ATN-SLD2065D soldering iron and ATN-T900 tips are very good choice for both professional engineers and beginners.

Limited Quantity of the new ESP32-S2 multimedia and breadboard development boards from Espressif are in stock!

ESP32-S2-Kaluga-1

ESP32-S2 is new SOC from Espressif which is supposed to solve some issues with current ESP32 and ESP8266 SOC chips.

First issue S2 solves is the small number of GPIOs ESP32 has, specially if you want to use the Ethernet interface. ESP32-S2 comes with 37 GPIOs in nice 5x5mm QFN28 package. The SOC is single core 240Mhz processor with build in USB interface. The Bluetooth and Ethernet interfaces are removed.

Pricewise ESP32-S2 is cheaper than ESP32 but a bit more expensive than ESP8266.

ESP32-S2-WROOVER module comes with 2MB of RAM and 4MB of Flash and will be able to replace ESP8266 everywhere while having enough resources to run secure SSL connection.

Two development boards are available for ESP32-S2.

ESP32-S2-Saiola-1R is the low cost entry breadboard experimental board which includes ESP32-S2-WROVER module, USB programmer, RGB LED and couple of buttons.

It has all GPIOs exposed for experiments:

esp32-s2-saola-1-v1.2-annotated-photo

The second board is ESP32-S2-Kaluga-1 which is multimedia board with camera, microphone, audio codec, 3.2″ LCD with touch screen, speaker:

ESP32-S2-Kaluga-1b

The kit comes with Camera module:


ESP32-S2-Kaluga-1c

and touch sensor plate:

ESP32-S2-Kaluga-1e

Kaluga multimedia board is so new that still not have page at Espressif site, so all info is in their GitHub repository.

New Plastic Box design for A20-OLinuXino-LIME2 with LiPo6600mAh battery

PLASTIC-BOX-ASM1

Few days ago we got parcel with some plastic parts sent to us from Mike Bosschaert.

PLASTIC-BOX-ASM2

we inserted LIME2 inside, the tolerances are tight and it’s hard to put the board in but even harder if you want to pull it from the plastic.

PLASTIC-BOX-ASM3

There is place for LiPO6600mAh battery with holder, but the battery cable is too short to plug in the board connector and need to be cut and extended. If the battery is put at left side of the PCB the cable may be enough.

PLASTIC-BOX-ASM4

The assembled box looks nice! Mike wrote that he designed it with FreeCAD and the model is printed in PLA using a Felix Pro 2 FDM printer. He provided all STL files under CC BY-SA 4.0 licensee and we add to OLINUXINO GitHub repository.

 

Installing and running /e/ pro-privacy open source Android on Open Source Hardware Laptop TERES-I

e-teres1

Few days ago customer asked if we can ship our Open Source hardware DIY Hacker friendly laptop TERES-I with /e/ pre-installed.

For these who has not clue what /e/ is: The /e/ ROM is a fork of Android with focus on privacy. It’s open source  pro privacy compatible with most existing Android applications. The /e/ is alternative to the Apple/Google duopoly on the smartphone.

I have seen Mr. Gael Duval tweet about the /e/ support for TERES-I from March this year, but shame on me I wasn’t try it yet, so I though it’s good time to give it a try.

The install instructions here and are very clear. Unfortunately when I followed them there was no result other than displaying this spash screen for Pine64.

e-splash

After waiting some minutes I decided that something is wrong and decided to write the image instead with dd command with balenaEtcher.

The image written with balena had same splash for a while then show /e/ install screen:

eboot

Be prepared to wait few minutes then the setup screen is shown, it’s same as first Android installation even you can choose Bulgarian language:

e-lang

After setting up the date/time, your WiFi connection etc you got the home screen:

e-teres1

Settings show that TERES-I now run Android 7 (Nougat):

e-settings

If you setup account you can go to app store:

EKYmZK3XYAEMgH-

Overall /e/ is running fine on A64 TERES-I and people who are used to Android environment, but do not want to be spy by Google service.

 

 

New Open Source Hardware board in stock BB-ADS1262 ten channel low noise, low power 32-bit sigma-delta ADC

BB-ADS1262

BB-ADS1262 is breakboard for ADS1262 low-noise, low-drift 38.4-kSPS, delta-sigma (ΔΣ) ADCs with an integrated  PGA, reference, and internal fault monitors.

Possible applications are sensor reading, small signals (ECG/EEG),  weigh scales, strain-gauge sensors, thermocouples, and resistance temperature devices (RTD).

 

USB-gLINK – Industrial Grade Open Source Hardware LTE cat 4 module for IoT with Navigation and LiPo battery support is in stock!

gLINK

USB-gLINK is Open Source Hardware Industrial grade -25+85ºC LTE cat 4 module optimized for IoT applications with integrated LiPo Battery power supply charger and Navigation. USB-gLINK operate on all GSM frequencies with 2G 3G 4G/LTE protocols, so you can use it worldwide.

USB-gLINK will work with OLinuXino OSHW Linux Computers, Beaglebone and Raspberry Pi and any other PC running Windows, Linux or Android.

The LTE speed is 150Mbps downlink and 50Mbps uplink, but is backward-compatible with existing EDGE and GSM/GPRS networks. This allows USB-gLINK to connect to any existing 2G, 3G and 4G network.

Inside USB-gLINK there is build in navigation which supports: GPS, GLONASS, BeiDou/Compass, Galileo and QZSS.

The networking supported protocols are : TCP / UDP / PPP / FTP / HTTP / NTP / PING / QMI / NITZ / SMTP / MQTT / CMUX / HTTPS / FTPS / SMTPS / SSL / MMS / FILE.

USB-gLINK can operate on these bands: B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B13 / B18 / B19 / B20 / B25 / B26 / B28 / B38 / B39 / B40 / B41, which covers every mobile operator anywhere in the world. This allow your solution based on USB-gLINK to be sold globally without hardware changes.

There are number of carriers who already approved the module used in USB-gLINK: Deutsche Telekom (Europe), Verizon/AT&T/Sprint/U.S. Cellular/T-Mobile (North America), Telus/Rogers (Canada)

These regulatory are passed: GCF (Global), CE (Europe), FCC/PTCRB (North America), IC (Canada), Anatel (Brazil), IFETEL (Mexico), SRRC/CCC/NAL (China), KC (South Korea), NCC (Taiwan, China), JATE/TELEC (Japan), RCM (Australia & New Zealand), FAC (Russia), NBTC (Thailand), IMDA (Singapore), ICASA (South Africa)

Olimage – Mainline Linux images building script for all of our OLinuXino and SOM boards

DEBIANubuntu_904

We work for more than 6 month on our own Linux building script and now we are ready with it’s initial release, which is now on GitHub .

Why do we need it? The number of our boards with all variant hit over 70 pcs when you add to them the different LCD combinations and other peripherials the support and test of these images became little hell. Our latest Armbian based image was released 3-4 months ago as we didn’t manage to properly test all board features in the newer images.

So we first made universal images for all our groups of boards (based on the SOC used) and EEPROM where we store info so uboot and kernel to may recognize the board and configure properly the parameters at boot time.

Then we decided to make one-for-all build script which will automatically build images with recent kernel and uboot automatically.

We had to leave Armbian as we wanted things to be more under our control and decision. Also we wanted everything to be 100% tested when released. Armbian official builds are not tested at hardware level other than to see board boots, so many boards are with peripheral conflicts and we had to apply our patched on Armbian anyway to adjust the images for our boards.

Our official images now are at http://images.olimex.com.

There is release folder where we have minimal and basic images for Debian and Ubuntu and testing folder where new uboot and kernel images will be built and kept until properly tested. For instance Ubuntu 20.04 LTS and kernel 5.6 images will be put there in the next couple of weeks.

The Olimage script and repositories are developed in our internal Gitlab and will be only push to Github when everything is properly tested and images moved to release folder. Also we push all our patches upstream.

With the current kernel and uboot users can easily generate any Linux distribution as it’s matter of building rootfs.

Moving to the next release would be possible simple by

sudo apt-get update && apt-get dist-upgrade

then re-boot of the board, so when we release new images all you have to do is to run the above commands and you will have the latest images.

For the moments the builder has A10, A13, A20, A64.

iMX233 and RK3188 SOCs are obsolete and not produced anymore by Rockchip and NXP, so they will be not included in the script. We still produce and sell these boards, but they will be discontinued when we use our existing SOC stock.

AM3352-SOM and AM3359-SOM will be included in the script, but we have no fixed date when, as we have to put earlier S3-OLinuXino and STMP1-OLinuXino-LIME2 which are with higher priority.

Build your own CPU and tools for it like Assembler, High level language compiler, simple OS, then write Pong game on it using only open source software and hardware. Check nand2tetris-13 project with iCE40HX8K-EVB + MOD-LCD2.8RTP + IceStorm

pong

Michael Schröder sent us link to his project nand2tetris-13 yesterday.

He managed to build his own CPU, to write Assembler, Jack high level language, OS and then write Fibonacci demo and Pong game. All this done on Open Source Hardware FPGA  board iCE40HX8K-EVB with MOD-LCD2.8RTP as display and FOSS tools IceStorm project. Keyboard is done by UART but my guess is that it could be easily implemented by iCE40-IO .

This is perfect project to teach students about so many things: Combinatory Logic, Sequential Logic, Computer Achitecture, Machine code to Assembler, High level language Compilers, simple OS and so on.

And the best here is that you can see this working on hardware not just boring lectures. Student can experiment with their own CPU and write applications like small games etc.

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