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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)
& i( x4 E0 n8 L6 Q4 m* m- #include <ESP8266HTTPClient.h>
$ j0 r" F6 M: ]7 y8 }: ?4 P - #include <ESP8266WiFi.h>
8 J- X% R3 E: ?6 y4 f1 C - #include <ESP8266WiFiMulti.h>
7 a, b+ \, @4 o2 h y - #include <ESP8266WebServer.h>; f9 _. I: [) D O- _) e' Q
- #include <arduino.h>
8 I/ j9 ?' j, q - ESP8266WiFiMulti WiFiMulti;- e( Y1 {! p1 k! [- r% K4 z
- ESP8266WebServer server(80);
1 F8 D f+ A3 [: e - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 B u: t0 t* |4 g - ADC_MODE(ADC_VCC);
$ R2 j6 t g. }! | - void setup() {% y2 m4 Z$ R2 f; |# a) J
- Serial.begin(115200);
0 X8 T+ _2 N9 G. x7 ~ - Serial.print("\r\n\n");! ]; p% c8 w$ y
- pinMode(2,OUTPUT);1 b0 H3 J+ f! Y; Y) J4 U1 x* _
- // WIFI
4 N6 f, T/ v! s! k, G - WiFi.mode(WIFI_STA);
. k- J6 b* V2 z, o: [ - WiFi.hostname("Sparkle");" s7 x8 v) Q" I1 v+ N8 E: ?& ^
- WiFiMulti.addAP("wifi ssid", "wifi password");
! P9 h- r; y# F8 q: m9 i - int tryNum = 15;
5 U5 R Y- I. B% n - Serial.print("Connect WiFi");
' t# b* Z t% k9 J! c# v+ q- a - while (WiFiMulti.run() != WL_CONNECTED) {
, N @, A* ^6 ?/ w - digitalWrite(2,0);
- |+ c9 p& S9 W2 c3 q - delay(200);' y" d( ], P! o9 { a
- digitalWrite(2,1);
+ _) w3 W8 u( U+ c - delay(300);) p3 i0 _( ^5 a! i
- Serial.print(".");
6 d9 M9 b/ {! c9 `2 B - tryNum--;+ Y" U( ]0 W7 Q: d1 H
- if (tryNum == 0) {" G2 z. U/ U6 u+ M1 ?) J/ [
- // 1min
; S* @5 ~7 T' g. H$ y W* [9 c - // ESP.deepSleep(60e6);
+ x! N4 T5 w7 |( s9 i6 n0 m - ESP.deepSleep(0);
- R8 o+ q( {1 l ~+ J0 ^ - }) M Q0 y/ I8 t/ W% M3 c0 |1 F
- }
5 O, C* _( ~4 _9 p - Serial.print("\r\n");
4 b# ?8 ]$ m: ^ n - digitalWrite(2,1);* ?. o9 D8 r3 L2 X" }
- Serial.print("IP address : ");6 \; e6 p2 l; b8 G: Q. A- S3 e
- Serial.println(WiFi.localIP());
" _; w# I) f, K8 ^1 F& P - server.on("/", HTTP_GET, [](){* N7 o- V, f" E; Q, T: N8 F
- server.sendHeader("Connection", "close");
( O0 o0 f) u G$ K4 } - server.send(200, "text/html", serverIndex);
$ J9 s" S$ t' a; z: p6 O - });# R; S+ P! W4 ]# R8 d
- server.on("/update", HTTP_POST, [](){
( e$ c, [+ @: H( A - server.sendHeader("Connection", "close");+ G! E5 B2 V& Z; S- V: a9 r
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% p" l* C& m, D3 K% _, J/ v
- ESP.restart();
- Q$ e; {' E1 i( S% j! ? - },[](){% n9 y) b. S. r6 \
- HTTPUpload& upload = server.upload();
3 Q/ I- M% R& D8 ]' J/ J0 O W - if(upload.status == UPLOAD_FILE_START){( |3 C9 w) S( \9 C5 m
- Serial.setDebugOutput(true);! H( v9 z6 W4 N: D
- Serial.printf("Update: %s\n", upload.filename.c_str());2 J" V# U" O- Q3 [$ \! ^; A
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 P3 V: X) q4 s2 f7 ` - if(!Update.begin(maxSketchSpace)){! y3 l* ]% ^/ [3 `* [
- Update.printError(Serial);, T/ Z. H" F6 F7 V" s
- }! Z7 ?& g0 z+ X/ ^
- } else if(upload.status == UPLOAD_FILE_WRITE){' B" P) A' ?) e3 t
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 O- `. \% x d+ p7 _2 ] - Update.printError(Serial);" `- U/ l' L( q5 j' Z5 P
- }
- D9 p5 d5 v4 j1 E - } else if(upload.status == UPLOAD_FILE_END){* K0 D" B. L+ N
- if(Update.end(true)){
, I1 }1 v1 Z) U8 R - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 D. E- s! [9 u* j6 O4 v) m8 ?; b+ o
- } else {' g4 F* X. F' q3 l
- Update.printError(Serial);
6 x4 a Q5 n. n& s }$ C - }2 Z% m5 l$ L, @0 a& t8 ?0 W
- Serial.setDebugOutput(false);9 a( X' l. [3 [( Z4 {
- }$ q2 t) w9 | q& s/ Q% ?0 O/ v# Z
- yield();
- P1 ~3 i! a6 O - });# j" f2 _" S6 f4 \4 g
-
* i: u, e4 M! V( E: z! r - digitalWrite(2,0);
+ f4 q- I0 Y' c4 I! o; | - mainAction();
/ ]3 O; c+ N3 {& S4 A7 |: H - if (digitalRead(0)){
* B! p& v9 F2 w2 i( b& E - ESP.deepSleep(0);; X! @; _8 \2 _. ]- w# H7 w
- } else {7 i& k# y, k; P7 M% [; C: _8 }3 W
- server.begin();5 u0 G7 [0 f- M9 U7 y- I3 @' L
- }0 i" s( ?( W2 C& e% R* K
- }
O- i0 @4 a2 i) a/ g - void loop() {* ^$ `* J/ b- v& i! P# m
- server.handleClient();
1 f5 c9 V3 @9 A - delay(1);
4 K: G* }9 V% }) _2 F* M2 S- M - }" e! o- t4 _2 ]) y, a! X" `
- String doGet(String url){5 z2 v; ^- W! z$ j6 I. [
- if ((WiFiMulti.run() == WL_CONNECTED)) {
B: V8 K5 f- |" b+ |1 ^: D8 ?+ H - HTTPClient http;
. X" Z" g. d- R- J - Serial.println("[HTTP] begin...");
8 z+ U4 O% O0 |3 I1 `1 s - if (url.startsWith("https")) {! K4 M8 G# {3 ?
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' A# v! N: e$ R* u+ F - } else {1 u) ~9 T# C% v6 [9 ^
- http.begin(url);
8 H3 d( N/ M: f. { c - }
7 B9 J$ b8 @; t. O! Y' q( z N - Serial.println("[HTTP] GET...");3 o3 Q; W; ]0 j) ~. x
- int httpCode = http.GET();
) [' q: g# ~3 Z0 O& ^7 Y - if (httpCode > 0) {
+ e! Y0 T1 N% A4 Y8 C - Serial.printf("[HTTP] code: %d\n", httpCode);
: C% q m7 W( ?* q - if (httpCode == HTTP_CODE_OK) {
( X& K* V2 _2 f, \: r V( i; ~7 Y - String payload = http.getString();
5 r( n+ V9 i x4 ^ C+ ? - Serial.println(payload);3 w* \* d E; g9 Z ~
- Serial.print("\r\n");3 e1 {8 w- e- R% C) i. O0 B
- return payload;
, E9 ]5 g+ U1 V' K2 i0 n8 q( b - }! s+ [( a9 w7 U! e! \
- } else {9 K6 a' I5 F& A. f \. ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",
1 k: E2 K; R5 F E - http.errorToString(httpCode).c_str());
/ X( d2 ^ w/ S$ h. G) z - }
: Z+ [! o9 C2 T9 B) i4 W# h - http.end();
. O8 t7 f k; m" A - return "";! s7 R1 q* G2 M+ Y
- }
2 I$ t9 \$ e2 V: L - }6 d) d& G2 }3 F+ w/ G
- void mainAction() {
1 C4 K1 Z7 a9 T5 a+ x - // 发送请求( o2 o. n- s. a+ U
- doGet("http://google.cn");
# w7 s* R- m7 q, ]8 { - }* C+ ^4 P9 E: r+ J$ L
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