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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)9 \: B: d: k$ ?" w/ @2 n( u
- #include <ESP8266HTTPClient.h>
/ c* A% I! J" [/ w - #include <ESP8266WiFi.h>
4 j: m7 Z8 j: B5 l. y. V4 \ - #include <ESP8266WiFiMulti.h>
. p5 ? \+ t @0 Z( ^ - #include <ESP8266WebServer.h>% f P. T7 |+ W, J
- #include <arduino.h>
1 I. v' @# a' e( Z - ESP8266WiFiMulti WiFiMulti;
x6 t" M2 C ]4 g! d3 c5 f$ Q - ESP8266WebServer server(80);, f2 S% ?7 f; _0 p( F( ?
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 M0 z% r2 F2 E8 O3 r - ADC_MODE(ADC_VCC);: D( p* m% W9 o
- void setup() {
8 K, Y0 d2 ]# J E7 L0 v - Serial.begin(115200);
* V0 @. I- i# G2 C - Serial.print("\r\n\n");4 k0 W$ {/ f" Y8 e, a8 j! \# T
- pinMode(2,OUTPUT);
8 S6 f- _7 Z( ]2 k+ v+ _2 i, g - // WIFI
3 s. P1 E" q; L* D1 ]; Y - WiFi.mode(WIFI_STA);
, S3 \/ R$ J6 ~ - WiFi.hostname("Sparkle");
: U$ n3 w) ^5 B8 _% @! b x - WiFiMulti.addAP("wifi ssid", "wifi password");
3 j7 l7 Z, p/ e8 `: O& g$ H+ M - int tryNum = 15;2 A$ h9 ^2 e3 J
- Serial.print("Connect WiFi");% q9 ^4 e8 q. F9 I# b. P' U
- while (WiFiMulti.run() != WL_CONNECTED) {
( |9 @$ W& d- \) e, ^8 c' B. } - digitalWrite(2,0);0 M0 Z, |3 k( h- I, \+ h
- delay(200);9 l8 |6 u& j% P* F
- digitalWrite(2,1);! v( J- K. e: t' s. X
- delay(300);
5 Q$ n' \- ]3 j' G' \+ o( v) j - Serial.print(".");% a/ Z }, t2 O3 k P3 y
- tryNum--;' i% z" U8 \. }5 P* ~
- if (tryNum == 0) {8 _: p. J" [8 Y4 O2 N% w
- // 1min `1 O6 m) _& l' r- G% ?- n
- // ESP.deepSleep(60e6);
/ N* Y! V8 K+ N. |6 @: ?2 @2 h+ M! _6 G - ESP.deepSleep(0);5 @) q8 t# b3 z: H1 ~9 r
- }
- _" V7 S" L; M/ Q; E! i3 I8 @0 x - }
/ z- N1 d$ |, D0 C9 U8 d - Serial.print("\r\n");
2 U8 c& z" W2 j+ S - digitalWrite(2,1);2 f$ s2 B4 T; Z5 y; K6 Z, o% H: h
- Serial.print("IP address : ");+ t z! s; h" t/ E0 `+ z4 z* B
- Serial.println(WiFi.localIP());( }- b5 G- G; n1 U3 A
- server.on("/", HTTP_GET, [](){, |& T5 ]' N7 p
- server.sendHeader("Connection", "close");1 [! i |0 Q# c" v0 B) |
- server.send(200, "text/html", serverIndex);
; T+ i3 s6 V$ W" @ - });( _' y( D z6 B9 ^3 P5 X
- server.on("/update", HTTP_POST, [](){. V0 n0 w+ b k4 u5 K9 n! D5 x& w
- server.sendHeader("Connection", "close");9 Q7 z' k' ?- @1 P- w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 N% L) v( ]% u. c U - ESP.restart();
3 J4 h! A' a* T - },[](){4 ^! ?( `' Z% x+ ]& b
- HTTPUpload& upload = server.upload();
; ?: D6 ~0 x0 U( O# F6 e$ Y3 s I( W - if(upload.status == UPLOAD_FILE_START){
/ ^9 O) O3 X* v - Serial.setDebugOutput(true);
1 U; i+ Y3 \: z- \: K- }) \ - Serial.printf("Update: %s\n", upload.filename.c_str());
( C4 `, }6 i* O& g+ r3 M# W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ `' g, Z) {) k* ~& E- {8 ]
- if(!Update.begin(maxSketchSpace)){- v, f! c8 Z1 U0 }3 D( B+ h
- Update.printError(Serial);* s* v* Y, P$ v$ T9 n: L
- }
7 O( @; @- N- F - } else if(upload.status == UPLOAD_FILE_WRITE){
% ]3 @/ B2 }. v! s( B) S! J: Q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& ]9 R# A4 u0 C& R
- Update.printError(Serial); r+ i: M2 K: A* I# G8 L0 e
- }, Q" @$ `' W+ |- L' I" [3 Q" q
- } else if(upload.status == UPLOAD_FILE_END){/ O/ _1 J" O, i" Q
- if(Update.end(true)){: w/ b% m F0 ?5 Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* ^- |) D: f! V5 F
- } else {
+ u" X% T" B6 l( Q% r: F4 ~ - Update.printError(Serial);
8 x9 J- h3 ?8 x: }* K - }' ^6 H1 i0 W; R7 E+ g
- Serial.setDebugOutput(false);- B1 b2 L$ `: C6 u
- }
* }) F" a/ I! H/ h/ I - yield();
6 l& P, w; _; {- D6 q* O - });# k" T* l( i w
-
. Z& \4 ` B) R. V2 G3 ^ - digitalWrite(2,0);
' O1 i& I% `! E, w/ ` A/ [* C0 }% j - mainAction();
2 ?- ^% Z6 q9 J# X8 }1 W' D5 C. x. ~) @+ F - if (digitalRead(0)){
: @9 z2 q) v6 p# A1 F - ESP.deepSleep(0);
. |+ w! C! F6 d - } else {
; {# Q" {/ i6 O2 B l6 S. A, C9 l3 u - server.begin();
! _" H: P& A# g# O( ~6 W' z - }/ b# [# }" j* }
- }# A1 i+ W2 q) x/ W. R
- void loop() {
! f. h2 F8 ~7 y: |4 g - server.handleClient();/ ]. C7 q" g) e0 A3 f1 N L! U
- delay(1);8 U. z% i, l3 Q
- }6 H! z2 J( z4 W1 L. C8 n
- String doGet(String url){
$ h9 ~( u% _1 F* a - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 D+ y7 P e1 Z. I - HTTPClient http;
$ a# J8 j/ U) T$ P8 S - Serial.println("[HTTP] begin...");5 g' J* {+ V+ x$ |. K+ O* A4 Y
- if (url.startsWith("https")) {
# T* `% Q& p# R0 | - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* x* ^! A% Q5 C1 r" B
- } else {* L) c1 w# R k2 O
- http.begin(url);; v, Z3 K. m' M6 [9 p; k
- }
! R6 Z0 o/ k, U$ w - Serial.println("[HTTP] GET...");
# l5 X* y9 ]" n+ `3 G - int httpCode = http.GET();
$ D" |4 R5 `3 P* W- E - if (httpCode > 0) {
8 \7 ~% Z" U4 E% z) s - Serial.printf("[HTTP] code: %d\n", httpCode);, M0 y0 o; O2 o* ~5 c/ W
- if (httpCode == HTTP_CODE_OK) {
$ @8 ~0 v5 k9 V z- p. F5 o - String payload = http.getString();
; N9 {" \& R0 E* b R* ]+ e - Serial.println(payload);; \* m8 k Q5 ~7 T. Y
- Serial.print("\r\n");- f3 y K. R( c, k' l$ N# X! o" h
- return payload;9 _: A2 r P5 R! W
- }
. j! U7 q, K0 G* |, S3 j - } else {1 @) Q, Z' ?# ]8 J I
- Serial.printf("[HTTP] GET... failed, error: %s\n",
8 F! H* m' _( P, @, ~) x) R& e - http.errorToString(httpCode).c_str());2 X5 o% d( x: L* H- {0 U
- }% y8 |0 z" I6 d" A" c$ {
- http.end();
, W0 b. u; I* U0 @4 F" R4 {6 f. c - return "";
! }7 e. z& Q+ \ - }4 f& H% ^, A( k8 D5 Q" P
- }
0 v" f, [- w' k/ u4 l - void mainAction() {
R$ Z* S \% A2 p' f' j - // 发送请求' e- g- {: g4 O; U/ z
- doGet("http://google.cn");) \+ F# a, w- P- v) \% x4 m
- }% f' _ ?) f$ P0 {6 N4 [# M8 M# {
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