New Open Source Hardware IoT ESP32-S2 development boards with LiPo Battery Charger and consumption of only 30uA in deep sleep target handheld WiFi apps

ESP32-S2 is new SOC from Espressif which fills the gap between ESP32 and ESP8266.

It has the same memory model as ESP32 but has cut the Ethernet and Bluetooth parts, so only WiFi connection is possible – same as ESP8266, but offers more power, secure boot and encrypted firmware. Also support of decent SSL connection, something which lacks in ESP8266.

Pricewise now S2 is a bit lower cost than ESP32 and more expensive than ESP8266, but there is very strong competition in this niche coming from the new Bouffalo BL6XX chips, so my prediction is that to stay ahead Espressif will further lower the prices of ESP32-S2 to match ESP8266 very soon.

For comparison with ESP32 and ESP8266 the new ESP32-S2 has plenty of GPIOs up to 43!

Initially Espressif has announced that their ESP32-S2-WROVER modules will have as low as 2-4uA consumption, but later they increased this value to 20uA. Not quite well as their target but still very good achievement.

Our ESP32-S2-DevKit-Lipo is pin to pin compatible with ESP32-S2-Saola-1:

To keep compatibility with SAOLA-1 we add RGB LED, but also add LiPo battery charger and ESP32-S2-DevKit-Lipo can operate even without external power supply only on LiPo battery, there is battery level monitoring and external power supply sense. ESP32-S2-DevKit-Lipo can power external circuits with 3.3V up to 200mA when operate on battery.

ESP32-S2-DevKit-Lipo has build in programmer with CH340T. There is possibility the programmer part to be excluded and to use ESP32-S2 directy USB connection.

When operating on battery if the RGB LED is enabled the power consumption is ridiculous 700uA as the RGB LED appear to use lot of current even when not in operation, but there is RGB disable solder jumper which if opened you will not be able to operate the RGB LED on battery but will decrease the power consumption to total less 30uA in deep sleep.

For these who need more memory there is variant ESP32-S2-WROVER-DevKit-Lipo with 2MB of PSRAM.

The prices start from EUR 5.56 for ESP32-S2-DevKit-Lipo and EUR 6.36 for ESP32-S2-WROVER-DevKit-Lipo .

PWR-SWITCH is optically isolated EU style power load switch for up to 3500W, 230VAC/16A and can be driven with any microcontroller, Arduino, EPS32, or Linux computers directly with 3-24V

PWR-SWITCH hides the high voltage problems from the Arduino, ESP32, Raspberry Pi, Beaglebone, OLinuXino developers. It has 1500VAC optically isolation and can drive high voltage up to 230VAC / 16A loads safely.

To switch On or Off the loads from 3 to 24VDC can be used, so you can drive the loads with any microcontroller only 1mA is necessary to trigger the switch.

PWR-SWITCH is with EU stype plug and receptacle, so to use it in US or in UK you will need some of these:US to EU adapter, EU to US adapter or UK to EU adapter.

 PWR-SWITCH has CE-EMC and LVD certification.

Green LED show the switch status.

LIME2-SHIELD adds CAN, second SD-card, two UEXT connectors, Audio IN and OUT, breadboard friendly GPIOs to A20-OLinuXino-LIME2 Open Source Hardware Linux computer

A20-OLinuXino-LIME2 is with small compact design, this is why we couldn’t put on it all connectors for the functionality this board offers.

The existing 0.05″ step connectors are OK for cables and shields, but are pain when you want to breadboard something or to attach UEXT module.

This is why we made LIME2-SHIELD open source hardware shield. It has these signals available:

LIME2-SHIELD User manual explains how to prepare your SD-card for booting Linux on A20-OLinuXino-LIME2, then how to setup the board with different scripts and device tree.

Demo codes how to work with GPIO, I2C, SPI, CAN with C, Python and console are included:

New Open Source Hardware board ESP-PROG allow you to program any Espressif device and can be used as general purpose USB-Serial converter

Created with GIMP

ESP-PROG is USB to Serial converter but beside the Serial TX and RX signals it also can power the target with +5V up to 0.5A or 3.3V up to 0.5A and have two additional signals which make programming automatic RESET (EN) and BOOT enable.

ESP-PROG-C includes all necessary cables for the ISP programming – 7 pcs jumper wires female to female and 6 pin ICSP cable.

ESP-PROG is based on CH340T IC and has drivers for Linux, Windows, MACOS, Android with up to 2 Mbps speed.

Open Source Hardware Industrial Linux computers STMP1-OLinuXino-LIME2 prototypes are ready for testing

STMP1

First prototypes of the Open Source Hardware Industrial grade operating at -45+85C Linux Single Board Computers STMP1-OLinuXino-LIME2 are assembled.

STMP1a

We build couple of boards with STM32MP153 and STM32MP157 for the first tests.

Now time to add Linux mainline support for it in OLIMAGE building and to add Ubuntu and Debian minimal and base images for it in http://images.olimex.com

Industrial grade -45+85C STMP1-SOM is almost completely routed and pin to pin compatible with A13-SOM

STMP1_SOM_bot

A13-SOM-256 and A13-SOM-512 are low cost Linux running System on Modules which are very popular but lack industrial grade operating temperature.

STM32MP1XXX series of SOC from ST is the first mass produced SOC which operates from -45 up to +125C by default, so we decided to design SOM module with STM32MP1XX SOC which to be pin to pin compatible with A13-SOM and offer same interfaces and signals so it could be drop in replacement for A13-SOM without need to re-design the complete product.

As you can see for STMP1-SOM we decided to put the SOC on opposite side of the connectors, this allow if necessary to add aluminum heatsink without interference with mainboard.

STMP1-SOM_TOP

Also we add AXP209 PMU which allow lower power operating modes and LiPo battery backup and operation on battery only which is missing in the original A13-SOM.

STMP1-SOM will be offered with three SOC choices STM32MP151, STM32MP153 and STM32MP157.

The prices will start from EUR 15 for the non industrial grade memory which are similar to A13-SOM and EUR 18 for the industrial grade -45+85C memory version.

We expect first STMP1-SOMs to be available in July 2020.

Full mainline Linux support will be available at http://images.olimex.com/

New Open Source Hardware board released: BB-TB6612 Dual DC motor controller with PWM to drive small robot cars with 12V up to 1.2A motors

BB-TB6612b

BB-TB6612 is dual channel DC motor controller board it is nice add on for the Robot chassis we have ROBOT-2WD-KIT , ROBOT-2WD-KIT2 , ROBOT-2WDL-KIT , ROBOT-3-WHEEL-KIT and can drive these gear motors: MG-6-120 , MG-6-48  and MG-6V-1:380

The digital logic can be from 2.7 up to 5.5V. The motor voltage can be from 2.5 up to 13.5V.

PWM, CW, CCW, brake-stop, stand-by modes are implemented.

 

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.

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)

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