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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)3 ?3 A# n+ w& T( r6 F
- #include <ESP8266HTTPClient.h>* I, j' o2 c3 W4 G
- #include <ESP8266WiFi.h>
! n5 K/ F. u8 r8 m. p d2 K - #include <ESP8266WiFiMulti.h>
( d* q- I, ?4 W - #include <ESP8266WebServer.h>/ x. |% h0 @% _) L% ^$ u$ W6 l8 L
- #include <arduino.h>
) f( P& r( \2 z0 V! b* E$ Y - ESP8266WiFiMulti WiFiMulti;
/ L+ ?3 k& D' @8 Z( Y - ESP8266WebServer server(80);( x: W9 ? D$ K/ B/ u4 L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* V* {5 |# Q2 M9 y - ADC_MODE(ADC_VCC);
$ H$ a# C( k$ j9 i - void setup() {
$ @& ~, E8 Q. M - Serial.begin(115200); m. O' A4 q3 j, L
- Serial.print("\r\n\n");
* \2 R B! P9 r$ f! Y - pinMode(2,OUTPUT);! L8 U8 z- Z. q- {+ l: U
- // WIFI* k, p( L( m- _$ Y+ @+ E9 F+ S$ i2 `* l
- WiFi.mode(WIFI_STA);
4 U2 a. p, I; t1 S0 B' H3 I: q& o - WiFi.hostname("Sparkle");1 {% E# Z8 x$ \( C! a6 R4 ~9 e0 f7 @
- WiFiMulti.addAP("wifi ssid", "wifi password");3 Q& J' Y* z) g: U5 q
- int tryNum = 15;$ `! x0 S. J) t" q, ^
- Serial.print("Connect WiFi");
+ ~, V# c8 b) q- p( I9 o! m, a# ^9 } - while (WiFiMulti.run() != WL_CONNECTED) {% T& X1 b" s; e$ N, z, t" k6 u
- digitalWrite(2,0);8 d, {: I) K: @4 m
- delay(200);
$ W# E# H( k3 d5 o* s! E$ N - digitalWrite(2,1);
+ v$ v/ T5 ?4 e; U - delay(300);3 e# E$ I+ l, m5 A
- Serial.print(".");
5 i8 ^: P i* t. A- d" m - tryNum--; f9 S# |* ]! v1 N
- if (tryNum == 0) {( o$ }6 Z/ n) Z# t) t
- // 1min. A: {8 f4 \/ a) J' P' S
- // ESP.deepSleep(60e6);$ ?7 K! q t w: h8 u- [$ m
- ESP.deepSleep(0);8 X7 T8 [7 j' X4 W/ i/ Y6 D% w
- }
2 z& H7 [! e2 |4 K* s$ a9 U - }, {7 {" s$ t/ Q6 B7 D2 p, I
- Serial.print("\r\n");6 b* F9 t8 r6 \5 f- w3 m# R
- digitalWrite(2,1);# z: i% V- E5 W6 b* Y; F
- Serial.print("IP address : ");
3 i( J& f3 r5 o! c - Serial.println(WiFi.localIP());
+ o" a7 O- P/ X, W. F7 Y - server.on("/", HTTP_GET, [](){
; k- w1 T$ I- K0 }% c - server.sendHeader("Connection", "close");) K, `# b5 `- c* `. X- J# K( L
- server.send(200, "text/html", serverIndex);# Z* q I; k1 n& k7 v
- });* E1 V5 i/ V7 {5 m. H8 W
- server.on("/update", HTTP_POST, [](){1 @1 \1 k+ }2 K/ v+ V% [) m
- server.sendHeader("Connection", "close");( _: @' o4 x2 t3 ]- F6 j; j
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- f6 s" Y; S6 R( T j; f3 |, @4 u - ESP.restart();
) J8 W# F9 R) _5 F0 e8 W# U - },[](){- O/ Q& U* h, t5 A& [* {8 \6 b
- HTTPUpload& upload = server.upload();
" T+ O8 O2 K O/ I `7 ~& x$ u0 a4 j - if(upload.status == UPLOAD_FILE_START){
1 B _# A# r$ J0 P - Serial.setDebugOutput(true);
1 G3 E1 ^6 C) g8 I2 W" f - Serial.printf("Update: %s\n", upload.filename.c_str());
& u8 v' [8 c6 X; t8 W - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* I5 e0 L. s) P - if(!Update.begin(maxSketchSpace)){# O6 n$ j3 Y( S+ W+ ~+ A: j
- Update.printError(Serial);( y1 u; p% @+ B) ]9 ?3 y/ d
- }
+ Z4 f% w M+ \4 t+ @ - } else if(upload.status == UPLOAD_FILE_WRITE){6 Q! w. w: u# b G# G* b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){$ o% N. }9 k/ k! |
- Update.printError(Serial);2 L b/ T. }( x# Y1 V* G& p
- }" y9 b4 ?. K6 }. [3 a/ J
- } else if(upload.status == UPLOAD_FILE_END){ g. E6 v8 _7 F: L; |- k
- if(Update.end(true)){ N5 S% W Y) u% [; `
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 h+ H( w, }) R& p6 ] - } else {6 I+ A2 A# S/ M5 B* k, Z
- Update.printError(Serial);! j, w/ @) Z1 t/ c& {8 I% w
- }! x; U/ ]' C( p- w
- Serial.setDebugOutput(false);
f6 `6 I' z7 k9 k1 i5 J# }' N - }- C6 X% u2 ?7 \, v: V
- yield();+ l1 { Z7 W* H" \& P; b% S- P/ D
- });) T/ [' k$ I/ n% p, w' {" J2 Z
-
3 j, q8 {) I7 e C0 L3 V) P - digitalWrite(2,0);6 `6 E! S0 D" v( y
- mainAction();- b. ?, p9 L4 y( R
- if (digitalRead(0)){: x2 N$ }7 X3 l/ L- D% H- ^
- ESP.deepSleep(0);
' q$ C! ~4 }$ ^) { - } else {
/ _% o4 R [* Z. U6 K - server.begin();
9 g2 o! i z9 D! A - }5 r6 q5 Q7 M6 D9 E& z
- }* m- [: g6 I# A5 K/ P
- void loop() {0 U7 Q: e" |5 \. ~* ~9 o' h
- server.handleClient();% Z, [5 B+ {1 U8 _- o# V/ z2 R
- delay(1);
3 c1 g! j' i; U$ A. A6 Y - }! R+ q, g, y$ J5 y; B7 |
- String doGet(String url){( o) `6 K& \# W7 p- I; r2 n
- if ((WiFiMulti.run() == WL_CONNECTED)) {
" P6 m; n: V5 V7 m' g3 b - HTTPClient http;
Q0 b7 C; I& I9 j, p0 G6 O: [6 r5 } - Serial.println("[HTTP] begin...");
9 |+ j5 G: w4 k' l9 P2 g' g& ? - if (url.startsWith("https")) {. Z/ ?; Z7 e- Y( ]( W) ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, b9 A. k( `- s* ~( Q( i+ j3 G- G - } else {
: u9 d' M6 ^7 W; ]3 f0 E0 y1 N - http.begin(url);
# _5 U# ?& L& Y2 x - }
0 [8 |8 C: r) L% o: W. I' ]7 O - Serial.println("[HTTP] GET...");* }" G2 P8 S9 E, P% S
- int httpCode = http.GET();# p/ M: X* Z* n( h; N L1 H
- if (httpCode > 0) {
8 f/ I% o: U3 v# _/ J - Serial.printf("[HTTP] code: %d\n", httpCode);
/ B! o3 D3 }# e6 T; y8 s - if (httpCode == HTTP_CODE_OK) {
$ H! S* ]( B+ `8 e - String payload = http.getString();9 ~% i9 A1 a, T, i J6 J" W; O) m
- Serial.println(payload);
8 z2 p& W1 d2 d' b+ ]; G8 B) y: y - Serial.print("\r\n");0 j6 J, K7 e0 r: U2 R
- return payload;$ l9 Q7 l& J/ h
- }
# M9 d+ ]/ s" x - } else {
; R% c9 H8 V6 d' K: v% V- o4 ] - Serial.printf("[HTTP] GET... failed, error: %s\n",' V5 } D0 d t. m+ W
- http.errorToString(httpCode).c_str());
# j4 x& P# S& I+ F9 J7 D - }8 M; u( W; v/ E9 L$ q
- http.end();4 ^+ n7 S/ B; N4 ~1 L' @
- return "";
. U' H W( D( T. P& \ - }8 c6 O. X( B: f
- }0 S& K: j) h! c$ ?* ~3 b( F% A" p( x
- void mainAction() {
# D! y" F8 l$ l - // 发送请求+ x# v* n/ h! z: E
- doGet("http://google.cn");8 k/ i0 q c1 N% R2 N0 M- q
- }
3 B- F. O/ ^! f2 j. r$ u
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