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WEMOS D1 ESP8266 WiFi development board based on the ESP8266EX system-on-chip. Designed for compatibility with Arduino IDE and NodeMCU firmware, this board integrates WiFi connectivity with a microcontroller core, making it suitable for IoT applications and wireless projects.
USB-to-serial interface for programming and debugging
Dimensions: Arduino Uno form factor, compatible with many Uno-style shields
The WEMOS D1 ESP8266 WiFi combines the ease of Arduino programming with the power of integrated WiFi, making it well-suited for IoT projects such as smart home devices, sensor networks, wireless data logging, and remote control systems.
Note: This board operates at 3.3 V logic levels. Applying voltages above 3.3 V to I/O pins may cause permanent damage.
4 reviews for WEMOS D1 ESP8266 WiFi Development Board
Rated 5 out of 5
Bruce –
These are really handy! I’ve got one already running a wifi brewing controller, and another is going into a fermentation temp controller. I’ll have a project for the 3rd one soon, I’m sure. I’ve bought from this supplier quite a bit before, and I’ve had nothing but good experiences. Will buy from them again!
Rated 5 out of 5
Mark –
Fast shipping as usual. The ESP8266 Uno type board came exactly as described and works excellent! I’ve bought quite a few things from Universal Solder and have yet to have an issue with the products or shipping.
Rated 5 out of 5
Carlos Perez –
I love it. As powerful as an arduino and much more versatilez. The best esp8266 i had.
Rated 5 out of 5
Dave B –
Very good product and service! This board is a WeMoS D1 R1 which I bought so as to control a USB hub’s power/switch. Initially the WeMoS was bought for educational investigation and I needed something that it had bigger flash than Arduino. The WeMoS board does it! The instructions were very useful in getting Arduino IDE installed with the correct library. Of note: Arduino IDE is Java based and had security that blocked download of the library. Not U-S’s problem, and found disable of my internet-security and getting the Java prompt to trust the download via Win10 overcame the prob. The board is robust and tolerate for output pins and power, not sure on input pins but avoid > 3.3V stuff. I asked a question of U-S and the response was quick and answered the question. Also, a following support email was sent to U-S and was professionally responded too.
Only logged in customers who have purchased this product may leave a review.
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//# sourceURL=ppcp-smart-button-js-extra
var woosb_vars = {"wc_price_decimals":"2","wc_price_format":"%1$s%2$s","wc_price_thousand_separator":",","wc_price_decimal_separator":".","wc_currency_symbol":"C$","price_decimals":"2","price_format":"%1$s%2$s","price_thousand_separator":",","price_decimal_separator":".","currency_symbol":"C$","trim_zeros":"","round_price":"1","recalc_price":"","change_image":"no","bundled_price":"no","bundled_price_from":"regular_price","change_price":"no","price_selector":".summary \u003E .price","saved_text":"(saved [d])","price_text":"Bundle price:","selected_text":"Selected:","alert_selection":"Please select a purchasable variation for [name] before adding this bundle to the cart.","alert_unpurchasable":"Product [name] is unpurchasable. Please remove it before adding the bundle to the cart.","alert_empty":"Please choose at least one product before adding this bundle to the cart.","alert_min":"Please choose at least a total quantity of [min] products before adding this bundle to the cart.","alert_max":"Sorry, you can only choose at max a total quantity of [max] products before adding this bundle to the cart.","alert_total_min":"The total must meet the minimum amount of [min].","alert_total_max":"The total must meet the maximum amount of [max]."};
//# sourceURL=woosb-frontend-js-extra
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//# sourceURL=wc_stripe_express_checkout-js-extra
var wc_address_i18n_params = {"locale":"{\"AT\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"AU\":{\"city\":[],\"postcode\":[],\"state\":[]},\"BE\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"BG\":{\"state\":{\"required\":false}},\"CA\":{\"postcode\":[],\"state\":[]},\"CH\":{\"postcode\":[],\"state\":{\"required\":false}},\"CR\":{\"state\":[]},\"CZ\":{\"state\":{\"required\":false,\"hidden\":true}},\"DE\":{\"postcode\":[],\"state\":{\"required\":false}},\"DK\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"FI\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"FR\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"GG\":{\"state\":{\"required\":false}},\"GR\":{\"state\":{\"required\":false}},\"HU\":{\"last_name\":[],\"first_name\":[],\"postcode\":[],\"city\":[],\"address_1\":[],\"address_2\":[],\"state\":{\"required\":false}},\"IE\":{\"postcode\":{\"required\":true},\"state\":[]},\"IS\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"IT\":{\"postcode\":[],\"state\":{\"required\":true}},\"NL\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"NZ\":{\"postcode\":[],\"state\":{\"required\":false}},\"NO\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"PR\":{\"city\":[],\"state\":{\"required\":false,\"hidden\":true}},\"PT\":{\"state\":{\"required\":false,\"hidden\":true}},\"SK\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"ES\":{\"postcode\":[],\"state\":[]},\"LI\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"LU\":{\"state\":{\"required\":false,\"hidden\":true}},\"SE\":{\"postcode\":[],\"state\":{\"required\":false,\"hidden\":true}},\"US\":{\"postcode\":[],\"state\":[]},\"GB\":{\"postcode\":[],\"state\":{\"required\":false}},\"default\":{\"first_name\":{\"required\":true,\"autocomplete\":\"given-name\"},\"last_name\":{\"required\":true,\"autocomplete\":\"family-name\"},\"company\":{\"autocomplete\":\"organization\",\"required\":false},\"country\":{\"type\":\"country\",\"required\":true,\"autocomplete\":\"country\"},\"address_1\":{\"required\":true,\"autocomplete\":\"address-line1\",\"description\":\"House number and street name\"},\"address_2\":{\"label_class\":[],\"autocomplete\":\"address-line2\",\"required\":false,\"description\":\"Apartment, unit, building, floor, etc.\"},\"city\":{\"required\":true,\"autocomplete\":\"address-level2\"},\"state\":{\"type\":\"state\",\"required\":true,\"validate\":[\"state\"],\"autocomplete\":\"address-level1\"},\"postcode\":{\"required\":true,\"validate\":[\"postcode\"],\"autocomplete\":\"postal-code\"}}}","locale_fields":"{\"address_1\":\"#billing_address_1_field, #shipping_address_1_field\",\"address_2\":\"#billing_address_2_field, #shipping_address_2_field\",\"state\":\"#billing_state_field, #shipping_state_field, #calc_shipping_state_field\",\"postcode\":\"#billing_postcode_field, #shipping_postcode_field, #calc_shipping_postcode_field\",\"city\":\"#billing_city_field, #shipping_city_field, #calc_shipping_city_field\"}","i18n_required_text":"required","i18n_optional_text":"optional"};
//# sourceURL=wc-address-i18n-js-extra
var wc_checkout_params = {"ajax_url":"/wp-admin/admin-ajax.php","wc_ajax_url":"/?wc-ajax=%%endpoint%%","update_order_review_nonce":"abc01ad4d6","apply_coupon_nonce":"57b8b7f874","remove_coupon_nonce":"ad2aca9b06","option_guest_checkout":"yes","checkout_url":"/?wc-ajax=checkout","is_checkout":"0","debug_mode":"1","i18n_checkout_error":"There was an error processing your order. Please check for any charges in your payment method and review your \u003Ca href=\"https://www.universal-solder.ca/my-account/orders/\"\u003Eorder history\u003C/a\u003E before placing the order again.","gateways_with_custom_place_order_button":[]};
//# sourceURL=wc-checkout-js-extra
var wc_stripe_upe_params = {"gatewayId":"stripe","title":"Credit / Debit Card","isUPEEnabled":"1","key":"pk_live_51AEsYaBTl86KSn0dsYsBLiLLHfIJsseIwYJcASWjNBykJtepfeJcb19VnL373p9cfdGx7YIemObwDNHcX2uSZyYF00Z2wUv5Oc","locale":"en","apiVersion":"2024-06-20","isLoggedIn":"","isSignupOnCheckoutAllowed":"1","isCheckout":"","return_url":"https://www.universal-solder.ca/checkout/order-received/?utm_nooverride=1","ajax_url":"/?wc-ajax=%%endpoint%%","wp_ajax_url":"https://www.universal-solder.ca/wp-admin/admin-ajax.php","theme_name":"astra","testMode":"","createPaymentIntentNonce":"1e797a295c","updatePaymentIntentNonce":"3b266207a8","createSetupIntentNonce":"5222c1f33f","createAndConfirmSetupIntentNonce":"07e97f6d1c","updateFailedOrderNonce":"ec4c3c30dc","createCheckoutSessionNonce":"d78980c476","paymentMethodsConfig":{"card":{"isReusable":true,"title":"Credit / Debit Card","description":"","testingInstructions":"\u003Cstrong\u003ETest mode:\u003C/strong\u003E use the test VISA card 4242424242424242 with any expiry date and CVC. Other payment methods may redirect to a Stripe test page to authorize payment. More test card numbers are listed \u003Ca href=\"https://docs.stripe.com/testing\" target=\"_blank\"\u003Ehere\u003C/a\u003E.","showSaveOption":true,"supportsDeferredIntent":true,"countries":[],"enabledPaymentMethods":["card"]}},"genericErrorMessage":"There was a problem processing the payment. Please check your email inbox and refresh the page to try again.","accountDescriptor":"","addPaymentReturnURL":"https://www.universal-solder.ca/my-account/payment-methods/","orderReceivedURL":"https://www.universal-solder.ca/checkout/order-received/","enabledBillingFields":["billing_email","billing_first_name","billing_last_name","billing_phone","billing_company","billing_country","billing_address_1","billing_address_2","billing_city","billing_state","billing_postcode"],"cartContainsSubscription":"","subscriptionRequiresManualRenewal":"","subscriptionManualRenewalEnabled":"","forceSavePaymentMethod":"","accountCountry":"CA","isExpressCheckoutEnabled":"1","isAmazonPayEnabled":"","isLinkEnabled":"","appearance":{"theme":"stripe"},"blocksAppearance":{"theme":"stripe"},"saveAppearanceNonce":"a56949d96f","isAmazonPayAvailable":"1","isOCEnabled":"","hasAffirmGatewayPlugin":"","hasKlarnaGatewayPlugin":"","cartTotal":"0","currency":"CAD","isPaymentNeeded":"","invalid_number":"The card number is not a valid credit card number.","invalid_expiry_month":"The card's expiration month is invalid.","invalid_expiry_year":"The card's expiration year is invalid.","invalid_cvc":"The card's security code is invalid.","incorrect_number":"The card number is incorrect.","incomplete_number":"The card number is incomplete.","incomplete_cvc":"The card's security code is incomplete.","incomplete_expiry":"The card's expiration date is incomplete.","expired_card":"The card has expired.","incorrect_cvc":"The card's security code is incorrect.","incorrect_zip":"The card's zip code failed validation.","postal_code_invalid":"Invalid zip code, please correct and try again","invalid_expiry_year_past":"The card's expiration year is in the past","card_declined":"The card was declined.","missing":"There is no card on a customer that is being charged.","processing_error":"An error occurred while processing the card.","invalid_sofort_country":"The billing country is not accepted by Sofort. Please try another country.","email_invalid":"Invalid email address, please correct and try again.","invalid_request_error":"Unable to process this payment, please try again or use alternative method.","amount_too_large":"The order total is too high for this payment method","amount_too_small":"The order total is too low for this payment method","country_code_invalid":"Invalid country code, please try again with a valid country code","tax_id_invalid":"Invalid Tax Id, please try again with a valid tax id","invalid_wallet_type":"Invalid wallet payment type, please try again or use an alternative method.","payment_intent_authentication_failure":"We are unable to authenticate your payment method. Please choose a different payment method and try again.","insufficient_funds":"Your card has insufficient funds."};
//# sourceURL=wc-stripe-upe-classic-js-extra
var wc_add_to_cart_variation_params = {"wc_ajax_url":"/?wc-ajax=%%endpoint%%","i18n_no_matching_variations_text":"Sorry, no products matched your selection. Please choose a different combination.","i18n_make_a_selection_text":"Please select some product options before adding this product to your cart.","i18n_unavailable_text":"Sorry, this product is unavailable. Please choose a different combination.","i18n_reset_alert_text":"Your selection has been reset. Please select some product options before adding this product to your cart."};
//# sourceURL=wc-add-to-cart-variation-js-extra
Bruce –
These are really handy! I’ve got one already running a wifi brewing controller, and another is going into a fermentation temp controller. I’ll have a project for the 3rd one soon, I’m sure. I’ve bought from this supplier quite a bit before, and I’ve had nothing but good experiences. Will buy from them again!
Mark –
Fast shipping as usual. The ESP8266 Uno type board came exactly as described and works excellent! I’ve bought quite a few things from Universal Solder and have yet to have an issue with the products or shipping.
Carlos Perez –
I love it. As powerful as an arduino and much more versatilez. The best esp8266 i had.
Dave B –
Very good product and service! This board is a WeMoS D1 R1 which I bought so as to control a USB hub’s power/switch. Initially the WeMoS was bought for educational investigation and I needed something that it had bigger flash than Arduino. The WeMoS board does it! The instructions were very useful in getting Arduino IDE installed with the correct library. Of note: Arduino IDE is Java based and had security that blocked download of the library. Not U-S’s problem, and found disable of my internet-security and getting the Java prompt to trust the download via Win10 overcame the prob. The board is robust and tolerate for output pins and power, not sure on input pins but avoid > 3.3V stuff. I asked a question of U-S and the response was quick and answered the question. Also, a following support email was sent to U-S and was professionally responded too.