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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)0 p7 l1 U2 n' Q0 x$ h; U# U
- #include <ESP8266HTTPClient.h>
4 ]8 H3 B o( b0 V7 f - #include <ESP8266WiFi.h>5 T8 {' E: k2 ?* l1 I: s! }
- #include <ESP8266WiFiMulti.h>( R+ M5 v# @+ a" X
- #include <ESP8266WebServer.h>6 Q7 J3 j" T9 m8 s
- #include <arduino.h>
9 Q; s/ |! D6 @$ A - ESP8266WiFiMulti WiFiMulti;
, |4 V( i3 `& z1 k$ M7 K - ESP8266WebServer server(80);
+ P3 r0 W" G6 ~" S3 P' L; W - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 v* E$ w9 A( P4 r8 x8 z - ADC_MODE(ADC_VCC);6 u/ t$ g( e, c9 R# E3 K* t
- void setup() {. x, I5 ?/ A) o& Q7 f( S
- Serial.begin(115200);7 G. A2 ]! w7 U: ^' p
- Serial.print("\r\n\n");
* S1 L7 B; B7 G8 A- ~ - pinMode(2,OUTPUT);
1 m4 u8 d. T' H5 s2 M - // WIFI/ n- H$ h- t! |1 S* r. {* X
- WiFi.mode(WIFI_STA);2 n! j* @, N4 ~& f
- WiFi.hostname("Sparkle");; e8 m! {. M. m: i9 a( a
- WiFiMulti.addAP("wifi ssid", "wifi password");
, U0 v) h) B7 b5 b' P5 E: I/ V, T! D - int tryNum = 15;
1 r- W* L, k# b# B0 p$ _0 ~ - Serial.print("Connect WiFi");2 F$ h( `2 e6 A
- while (WiFiMulti.run() != WL_CONNECTED) { D9 Q( S& R0 T$ U. t$ h2 }9 v
- digitalWrite(2,0);
( Z; I6 E9 I' n' @% T - delay(200);8 m- ^3 x1 Y5 A& Y; S0 x- X
- digitalWrite(2,1);
% t% Y! Y! L% v$ d - delay(300);
2 h5 \$ ^8 I5 K" O* D( H4 K - Serial.print(".");
, `, B' y E1 g4 `% s0 y$ H - tryNum--;9 R& w- ~7 Q$ m: P3 N
- if (tryNum == 0) {. D- @6 j, J! v
- // 1min
& O* z. T/ U" ~" A* T* }9 ~$ W! {" _ - // ESP.deepSleep(60e6);
5 `" \4 u* J; N6 t' t. [ - ESP.deepSleep(0);
/ b. y6 S9 h* J2 Y* O' M: y- o: r - }; C0 d" M5 i% b: R% ~
- }
" `, h l0 C; m# o m - Serial.print("\r\n");
0 c% O* L4 H; Q3 \, s& _( G - digitalWrite(2,1);+ L: l% l! i* C; X+ a& C
- Serial.print("IP address : ");
, z& R$ t' [6 V9 s2 H g1 w - Serial.println(WiFi.localIP());. k1 t ?/ f8 M% O+ z
- server.on("/", HTTP_GET, [](){* l* C& U! |: T
- server.sendHeader("Connection", "close");# @, d6 d$ g; B: B/ T: E
- server.send(200, "text/html", serverIndex);5 V; \1 \/ l1 @) E6 ~6 G4 M
- });
) A) }6 ^' X s5 ` - server.on("/update", HTTP_POST, [](){5 \3 _7 ?4 H/ b- V3 }1 P+ A
- server.sendHeader("Connection", "close");
9 J- W" F, M6 l4 ?6 N) N3 y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, G+ n+ c. W! Y4 z* X! V* C. @6 W
- ESP.restart();
/ k+ n. V, b q+ x1 ~. p - },[](){
1 Z' F; T3 K6 D( E+ h9 l+ q: s - HTTPUpload& upload = server.upload();
8 J V# e' p# V8 I - if(upload.status == UPLOAD_FILE_START){* Z# o: O6 G* Y% T) u
- Serial.setDebugOutput(true);
( I7 K. G' t( t/ N - Serial.printf("Update: %s\n", upload.filename.c_str());; f }" X6 ]* K* G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 ?% ^( ~8 G' x0 R; y1 b# m
- if(!Update.begin(maxSketchSpace)){ B/ Q: {/ H1 d. ~7 e$ {' q
- Update.printError(Serial);
$ i9 n/ _/ W1 Y* {; T0 y' j - }" l S" S9 r0 Z, v* r; y0 @
- } else if(upload.status == UPLOAD_FILE_WRITE){
0 k) {! S& \; z. c2 _ y' f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' K& g; L& u( g1 {1 h# v3 T - Update.printError(Serial);
/ g5 s/ E2 r; V U6 p# G0 ] - }
X- z* N" A( q - } else if(upload.status == UPLOAD_FILE_END){
3 w( T h- Y* z/ f9 D+ w - if(Update.end(true)){# C% i& |) h- E. I* _* r0 y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' X* I: T! Q# m
- } else {
& x& ]4 r q. N! E8 @9 N - Update.printError(Serial);
7 I) o) ?5 X8 |3 z3 y. P6 @; J - }
! \3 L' v! o! J6 @ - Serial.setDebugOutput(false);- i- K+ X: c& B$ g
- }
0 I$ G/ u) ~' Z: N - yield();
3 H( z! P4 Q6 W1 }+ o - });
C: A8 F( _) \2 q -
8 p* Q0 n7 ]3 i" e3 F. D5 K! T6 B - digitalWrite(2,0);/ n* Q- c' m6 f! |% @! {
- mainAction();
^/ d9 v( E4 M - if (digitalRead(0)){
* S# G9 v J9 L( m1 Y4 T - ESP.deepSleep(0);+ V, Z7 ?; [% c. n1 d* L
- } else {
# o& y3 V' _0 q4 w% }- g4 H5 e - server.begin();! U& S+ @% M1 s1 a
- }; G% S9 o2 Y) o) a s! j4 u# w
- }
/ \" |( g1 Q1 v# B/ u* n - void loop() {
' Q8 D- G& ~7 Y/ ? - server.handleClient();
# `! u, j7 X7 F0 C2 K+ F" s - delay(1);
; j. w! @4 u. p2 b3 N+ P* ^ - }$ E0 n0 ]& t+ D# ~$ M, M
- String doGet(String url){
( T8 j- m3 V: [& T - if ((WiFiMulti.run() == WL_CONNECTED)) {% o7 `9 n6 g- E# \1 |# v4 U7 ~* K. Y
- HTTPClient http;: X8 U' t5 o' ?; {8 H5 L
- Serial.println("[HTTP] begin...");. T' Y' m7 ?; W1 e
- if (url.startsWith("https")) {, h8 z _: E8 B7 j, x
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! c+ W( k X! `
- } else {
( w1 ?2 r: P% }# J8 l7 p3 V - http.begin(url);
* l( B S! R! }( w4 L6 h- b; W - }5 a' L" k6 x, _. G1 t
- Serial.println("[HTTP] GET...");
' H1 ?( ~3 e5 }" c - int httpCode = http.GET();5 W) Q0 r( N* T+ l4 Q6 Q* {6 u
- if (httpCode > 0) {5 W4 D% N( E# e( x' }1 `7 y
- Serial.printf("[HTTP] code: %d\n", httpCode);4 C9 X4 L) {3 f& I, }% M$ d# i
- if (httpCode == HTTP_CODE_OK) {
1 q" B4 U8 D' ] - String payload = http.getString();
/ a v( i4 {) U' {, z- M - Serial.println(payload);. L6 j5 F- ~1 f" O) N( O( k
- Serial.print("\r\n");2 w, p9 V2 y7 m: Z% e! M# ]& c
- return payload;0 i9 z- v) e( D* O) a
- }8 S" |6 ?7 e9 }! t0 K: D, T
- } else {
4 g7 f M( j) X - Serial.printf("[HTTP] GET... failed, error: %s\n",* P0 C# k& u3 H& M8 j) u
- http.errorToString(httpCode).c_str());- H$ M. h; V/ [
- }+ E* E; m+ U5 T" g. R7 `% ]
- http.end();
Y, L- ]% C* Q - return "";: w' w* R, c9 }' n
- }, F" @! R0 a4 {2 F0 t. f* q5 z" c
- }
, h: ^9 L4 S" v ^& a0 { - void mainAction() {
2 }: x# v3 E$ I - // 发送请求
! w3 ]" \% V, G - doGet("http://google.cn");7 D% g: T/ V% k" \
- }
2 i- N- \, N1 _! K- |3 X' t5 x) ?
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