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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)+ C3 E$ l" e! |; \- U
- #include <ESP8266HTTPClient.h>. }3 c1 h, v1 u _& u2 {9 ^
- #include <ESP8266WiFi.h>" L, i. N2 L7 m/ z/ G
- #include <ESP8266WiFiMulti.h>
( e0 |6 l; U) J - #include <ESP8266WebServer.h>
+ q& x4 c- d& B* c+ c1 f2 x3 M - #include <arduino.h>. _6 Y+ P1 I- T7 }6 h: }. f+ Z
- ESP8266WiFiMulti WiFiMulti;5 T+ \( Q$ d" K* E: h
- ESP8266WebServer server(80);
0 n) y% c6 k* _! D. v9 @6 } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- w! M5 p2 ]5 C
- ADC_MODE(ADC_VCC);" y; l7 s& f6 Y
- void setup() {
, w* a/ O( X7 a% ], a! I! q - Serial.begin(115200);; R5 X, ?. o- {2 S
- Serial.print("\r\n\n");
( w! S2 _0 J7 X: P4 G4 ? - pinMode(2,OUTPUT);
2 e1 @, u7 y' P) X/ h2 a - // WIFI9 K7 q6 G5 Q [ n8 K7 s6 l
- WiFi.mode(WIFI_STA); f2 x! @7 b4 e2 n$ w9 e
- WiFi.hostname("Sparkle");9 b/ @# c/ V; t' M) i. N$ d
- WiFiMulti.addAP("wifi ssid", "wifi password");$ U, G. k7 B" H. i
- int tryNum = 15;
' U" ]; _2 L( S j4 h/ R - Serial.print("Connect WiFi");1 d( S+ N/ \. {0 [
- while (WiFiMulti.run() != WL_CONNECTED) {: m$ H$ T/ i' \2 \( h1 ^
- digitalWrite(2,0);
# h& b7 V, P8 _$ m& \# h& X - delay(200);
" R8 c: r2 f ~9 r2 ]( C# Q - digitalWrite(2,1);
2 ?" I& f! h' ~) Z& j - delay(300);2 z0 F( J% p; }7 G) A
- Serial.print(".");0 S$ j' B: |/ O* k& ^
- tryNum--;: B* ^% e7 m) O7 ?* r9 x' l$ M
- if (tryNum == 0) {
& C/ y# }/ M0 r - // 1min
! V; g/ d8 n! _) d: P - // ESP.deepSleep(60e6);7 Q+ A/ t# z$ x, M0 F: ?9 j
- ESP.deepSleep(0);1 m7 @1 |6 L- f2 V
- }
$ c3 X4 K1 U7 _( V( }2 y5 e - }
! V7 P- F# Y$ s9 @5 G - Serial.print("\r\n");# ]$ U h( A( I X8 l* C3 M( o
- digitalWrite(2,1);/ t% f* G$ S2 S: {* Y7 Y6 j" e* n0 s4 Z
- Serial.print("IP address : ");
( ]: i+ ~/ D I1 c - Serial.println(WiFi.localIP());$ D# l9 O9 W- a$ r
- server.on("/", HTTP_GET, [](){
$ p Y: Z1 r- s% D3 [ - server.sendHeader("Connection", "close");) J) u, ?0 |- A! t9 k1 [
- server.send(200, "text/html", serverIndex);
1 b4 A; g! K7 f. Q* p( C - });
" m$ `6 ^/ o4 L* s( V - server.on("/update", HTTP_POST, [](){
8 g3 g$ e4 e5 o! ], W4 ]" t7 g - server.sendHeader("Connection", "close");9 ~% h7 E' |. k7 j2 j+ v) B# P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# V$ i$ H# M! i: ^6 ~1 [3 q - ESP.restart();; s1 P, a2 N- b+ A' }7 F# K
- },[](){( v% ^% K. X. r5 C" t# o1 x: z8 [
- HTTPUpload& upload = server.upload();
( Y: g5 g* g: @, p* @$ h+ G* [5 b - if(upload.status == UPLOAD_FILE_START){0 j: k" \( i3 V: V7 J) K4 ^
- Serial.setDebugOutput(true);- N3 e/ U2 n' R* E
- Serial.printf("Update: %s\n", upload.filename.c_str());# D g( n+ I* ?# D) ?! f/ e7 x; Q7 d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- |/ z! Z$ r, \* _- w' n" w! t4 h - if(!Update.begin(maxSketchSpace)){
3 W8 l) h4 B% _3 M/ R, H - Update.printError(Serial);
4 P [2 \& a. k- @" R! Q/ I - }1 Z2 ^* N! ]+ h" q G J
- } else if(upload.status == UPLOAD_FILE_WRITE){
2 d" \' Y% K+ j! C, B( l - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 W. J$ X' Z! [
- Update.printError(Serial);) m: Y$ i4 [, f
- }+ S+ ]/ g8 I; T
- } else if(upload.status == UPLOAD_FILE_END){, {1 `0 u, P3 Z$ J+ @+ d: x
- if(Update.end(true)){
' J2 [3 g: H2 e6 x) Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ p. X, h3 x9 o
- } else {
" Z2 q) J- `' Q; o( Q5 } - Update.printError(Serial);
: T+ ^ J' z9 G4 W* B - }
; o& t7 F- X2 Q9 k# D4 O) F: X - Serial.setDebugOutput(false);; W" p9 Z. m8 U2 a1 t
- } M8 Y$ e! ^6 L- B( k! ^: O! Q" L! r
- yield();. P4 U, \: N6 X9 b3 _0 I$ Z7 s
- });3 Q: N: A z3 h8 g1 [
- + p& |! N* E2 t4 {
- digitalWrite(2,0);4 g( _5 U- f! z0 h
- mainAction();
" o. Y3 I3 f0 C4 k - if (digitalRead(0)){8 _; H- j5 p5 m. B, V4 d8 ?" u
- ESP.deepSleep(0);
5 M- ?( s% K1 y) a# H - } else {
' q' q) G, C# M0 l b$ R - server.begin();
5 G( M9 n2 N, V) [* G - }
( w4 t; y4 G" m. {- k( g2 e$ ^ - }
4 P7 K6 f$ h" U+ | - void loop() {
) g3 k. g$ s* A/ \) Q7 T3 H( S0 d - server.handleClient();
6 w! A* `8 T# z1 F& y3 f& o' Q6 I - delay(1); t# s; `# T" ]9 s4 T; p
- }
: O2 Q3 U; R! L, M - String doGet(String url){, [9 e+ H" S5 m- p( T
- if ((WiFiMulti.run() == WL_CONNECTED)) {: T) d6 }, u2 X( H
- HTTPClient http;- _3 o3 t; ~' w% z% b% k
- Serial.println("[HTTP] begin...");
6 P1 u& p9 K1 W% ?4 i - if (url.startsWith("https")) {
3 p4 _, N, F3 i3 o - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" I, E5 @& v$ i, G1 {
- } else {
- P/ ^* {6 o p/ _/ l" \ - http.begin(url);
. Y3 s1 R U! |1 _ - }5 O: w3 b' z% J/ K( y9 m. x3 B3 g, I
- Serial.println("[HTTP] GET...");7 l4 F" s- d# e2 o) V% H9 P" l
- int httpCode = http.GET();
5 S) f3 Y* {5 |" f, m - if (httpCode > 0) {2 E |* L6 P- [
- Serial.printf("[HTTP] code: %d\n", httpCode);/ s. H' f5 W) `6 _/ K! _ c' ~3 n c
- if (httpCode == HTTP_CODE_OK) {
3 T7 B. @7 `) j3 ?- c" ? - String payload = http.getString();
/ v. O& F6 Y1 K3 h# X; v - Serial.println(payload);
& Z# n0 c% H) f' b% \+ u - Serial.print("\r\n");
: a+ y% g0 Z. g - return payload;; s) M% l) C" x9 z: {
- }
+ N" y5 g1 x* b - } else {( z: \4 y; z0 @) F, p1 ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",9 I( V, i( G4 B" E
- http.errorToString(httpCode).c_str());
0 Z: g: ]- N$ B5 Z6 Q" D; G - }
/ k5 _4 O0 y& i; ~" G - http.end();5 \" i/ M: T# Z& X
- return "";$ ~5 `7 W5 t6 ^3 f2 G' C
- }3 w" l$ e8 H$ v1 T, c% {0 e
- }
1 @- {$ D% I- j+ ]0 z/ K) f - void mainAction() {
0 X6 `% b- U: i n5 ? - // 发送请求$ N; _) w6 Q P( {
- doGet("http://google.cn");0 c2 h6 d S; G1 V4 q
- }8 g/ J% Q- y `9 h i
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