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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)5 o' Q, l& l5 E0 c
- #include <ESP8266HTTPClient.h>
5 n, F, r! e; h7 a! s( Y$ ^ - #include <ESP8266WiFi.h>; N: w* G; N( b" x5 t' m
- #include <ESP8266WiFiMulti.h>6 P* |( A0 {7 h' F e
- #include <ESP8266WebServer.h>0 G6 _$ U1 u( g \" ?
- #include <arduino.h>4 c( M, J3 R+ }" l
- ESP8266WiFiMulti WiFiMulti;# S* L( Q6 [( J6 I0 o4 U, S8 L/ E
- ESP8266WebServer server(80);
! D5 X! \6 Q- D# |6 T. C: G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' ^- |0 u X- J$ e& k" l
- ADC_MODE(ADC_VCC);
# K2 m6 O K; f& _+ J' m2 \0 o - void setup() {
% F$ J5 { U; _& f H5 i9 S - Serial.begin(115200);) ?( ?2 H i9 L& r* ?0 N# ]. t& a! S
- Serial.print("\r\n\n");) D: H' w3 M; X9 ~) e* l# }* N
- pinMode(2,OUTPUT);
' _/ W4 ]. }# L( C0 I, G; V; Q0 v - // WIFI
- `- y) m# F; K7 l' k - WiFi.mode(WIFI_STA);
9 f/ G5 R5 }3 p3 O0 v - WiFi.hostname("Sparkle");; u- ] ^8 h0 ?2 l' b- B8 b" D
- WiFiMulti.addAP("wifi ssid", "wifi password");
. }7 |* }; Q, d; a - int tryNum = 15;, ?! u. f, s: E8 ^! U3 e; y8 w9 |+ J
- Serial.print("Connect WiFi");
) @" W" Z+ o y) I - while (WiFiMulti.run() != WL_CONNECTED) {8 N6 x# j+ w4 l2 l
- digitalWrite(2,0);
0 p. f! f5 U! F1 j& Q - delay(200);% K+ W6 O5 r% w8 p7 P7 ~
- digitalWrite(2,1);7 A( _4 U# Q/ m; V+ p0 \- r$ i
- delay(300);
" I# p" d) r' A( z& i% h, z - Serial.print(".");! R' |7 _) f9 }5 c2 y) m8 O
- tryNum--; d3 [9 c, g7 w( k5 O! f; {
- if (tryNum == 0) {
5 d& P4 v2 m ?* \: \ - // 1min
9 ]5 z9 T+ X, N' P - // ESP.deepSleep(60e6);
' Z+ m& q8 b2 d9 B - ESP.deepSleep(0);+ g k4 D1 s$ M# ?: G/ g9 q
- }; w( N2 `# X: M" n$ ^
- }& a3 q% \+ P0 @: X. k
- Serial.print("\r\n");9 P' [6 @( J" v
- digitalWrite(2,1); T* L2 Q/ N, K
- Serial.print("IP address : ");, u$ W; |. P' g" ?6 D( w
- Serial.println(WiFi.localIP());
% y8 g/ A: F1 P/ `; H' K - server.on("/", HTTP_GET, [](){9 ], A' Y, b5 H0 {( S
- server.sendHeader("Connection", "close"); s) ~. ?$ e7 p' I2 B2 b
- server.send(200, "text/html", serverIndex);( [4 I: K" |9 @' N+ S( t1 ~: K9 |
- });& Z) N" o v6 k* p L
- server.on("/update", HTTP_POST, [](){0 g( ]4 H! J5 x1 v: \
- server.sendHeader("Connection", "close");) |' M( h" B, A; ?' q5 w: P) y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 q3 o3 k7 [* c4 ` p5 Q
- ESP.restart();8 g/ q/ \0 E g$ w
- },[](){# O% q5 H2 V1 a3 u
- HTTPUpload& upload = server.upload();
$ {% h% X, V! Z0 Y - if(upload.status == UPLOAD_FILE_START){
. A+ h3 c& o8 p2 L9 y - Serial.setDebugOutput(true);$ P! g# W( C9 p/ w
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 R5 F5 {; R4 @9 x: n; R, l6 t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 z8 z% w3 {' i: z2 c1 k - if(!Update.begin(maxSketchSpace)){
, s/ w/ d; H! C9 D% B4 h - Update.printError(Serial);
" F- r2 D2 P, a: x, Z$ u& L - }
& A% J" C6 w9 A3 f - } else if(upload.status == UPLOAD_FILE_WRITE){
8 j, ~8 @" s, D9 {- l1 i) ]8 w" p - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
- L5 B" p/ L( i* [/ W6 C0 h - Update.printError(Serial);& u" _+ Q( I2 u. c
- }
, P0 ?- G$ v. R/ q0 i - } else if(upload.status == UPLOAD_FILE_END){
9 ?7 b" H7 _ |) Z! } - if(Update.end(true)){
5 d; t! Q" o- X( B. C- ~ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# k6 s8 b1 Z, E% W, t6 B - } else {
3 R, {( y( n' P* {0 M9 Z9 x0 B - Update.printError(Serial);
: U0 s) |# |; v, W) J$ \: V+ z3 z - }
6 \7 U/ p% U1 f" r9 w V2 G8 u - Serial.setDebugOutput(false);+ h* s! o% Z2 n- E
- }
3 W2 }, {" Q( r2 l: |) r1 G5 k0 D9 D - yield();
* ^$ v. @3 Q3 \ - });& ` f. g; n) [: |
- ; ^: |/ N( q6 [( ?4 L( N
- digitalWrite(2,0);, I" [! J* X. [$ c* d: {4 c7 e
- mainAction();
( ^0 H4 w d0 n5 Y - if (digitalRead(0)){( P8 {9 d7 Z$ u5 h. c8 m9 o: h' W
- ESP.deepSleep(0);1 h& g" F% b1 s/ t; e4 M
- } else {
: b6 Z( k* ^( i6 U* ` - server.begin();: ^5 O1 n- n5 F
- }
_4 A/ v7 K! Z* [. |' [ h3 { - }
+ v: f, D* K! Z% }' g - void loop() {
) i8 ^9 c& `* w8 [1 Q9 u - server.handleClient();
) e% X8 t9 ~* g: q8 M( b0 ?* ? - delay(1);) }: c8 C: J3 Z5 l* e; a
- }& i1 A9 C5 T0 z+ N9 @9 n
- String doGet(String url){
2 B5 `2 P3 r( S0 ?( ~6 a - if ((WiFiMulti.run() == WL_CONNECTED)) {
5 R7 v1 S0 e( {; F$ ` - HTTPClient http;: M7 b0 p7 n* O, l
- Serial.println("[HTTP] begin...");
/ p# z. Z0 ?4 j - if (url.startsWith("https")) {
1 n: ?) ^! c% M- U' }# i/ F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: L3 ~: P( G: f5 a7 L
- } else {+ g$ h! U4 L1 K; z* l& N2 f4 {/ S! i5 ^
- http.begin(url);
5 S4 e; j& U: e) d. m - }. y) @( L: f4 q0 G3 B% `
- Serial.println("[HTTP] GET...");
; x. r0 o. @) D; ~4 y. D; w - int httpCode = http.GET();
( X% @$ L: n; q, p% V - if (httpCode > 0) {
! I8 h5 c. B' o0 [% @* b( j - Serial.printf("[HTTP] code: %d\n", httpCode);2 h3 \" q) N; Y7 q( j8 ~: [* u
- if (httpCode == HTTP_CODE_OK) {
6 @: r0 V0 Q- s9 @9 J* ^ - String payload = http.getString();
0 v) p5 h& _% o& w - Serial.println(payload);
9 Y, b" E5 `: m* r. T* Z( R1 w: S! [6 z" _ - Serial.print("\r\n");6 h8 v# t2 n- A0 t
- return payload;
2 Y/ Q3 D) d4 K% l* t( _& \2 ? - }
4 F6 a R* c' |4 Q5 S, {4 ^ - } else {( Y0 U2 l( \% G* U8 m/ {
- Serial.printf("[HTTP] GET... failed, error: %s\n",
# l, x3 J0 T4 g# U/ E, A1 g - http.errorToString(httpCode).c_str());0 \- ~9 r& B- I) l5 q, W
- }
2 k3 Q* R* M u0 n0 E - http.end();6 V1 `! [1 Y0 G. O" N0 y4 k& \( L
- return "";
! P( z9 G/ G5 `9 t7 | - }
7 `$ N4 b6 t+ b Y9 n1 f) E( { - }
& g# T+ c5 r3 o$ M- n4 N3 S6 U V! ^. Q8 t - void mainAction() {( z2 j/ |$ l, j/ W
- // 发送请求: v; |+ f% H4 C9 @& `# s/ F
- doGet("http://google.cn");( E8 i: H1 }- k4 w
- }
3 _) f( _9 C6 }. b0 m" T3 g. R
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