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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)8 ^/ j4 @7 ^/ ?4 s2 @/ `
- #include <ESP8266HTTPClient.h>+ T2 W3 r* p1 ^4 r/ W$ q+ J) L; k- k
- #include <ESP8266WiFi.h>" c' ?8 X; w7 |8 E- p7 [
- #include <ESP8266WiFiMulti.h>- j" P+ `; P: [
- #include <ESP8266WebServer.h>
4 d" C# Z# I" ]; F- n2 F9 K# ~ - #include <arduino.h>/ x/ y$ f W2 Q3 N1 \
- ESP8266WiFiMulti WiFiMulti;
7 }/ n6 B6 Q0 h - ESP8266WebServer server(80);
/ f& d. C3 ^- g: D - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 w7 |) N2 O9 E+ ^( G
- ADC_MODE(ADC_VCC);2 |5 Q# Q8 N+ C8 q/ [6 R W& S0 N
- void setup() {
) Q0 K& x" ]6 y# F - Serial.begin(115200);
* Z4 ]& E5 b+ y, I - Serial.print("\r\n\n");5 } Q7 g9 g6 b$ v5 |
- pinMode(2,OUTPUT);
: x- h- }6 a4 |$ C6 D1 ^ - // WIFI" y" S+ {7 q, k; X: b8 S, ?5 H0 X. U1 j
- WiFi.mode(WIFI_STA);
9 _: G% m9 E, @5 r- L6 z% @ - WiFi.hostname("Sparkle");
3 y! \) K5 g! C3 b Q - WiFiMulti.addAP("wifi ssid", "wifi password");6 `1 Z9 b( B n7 a
- int tryNum = 15; X1 t' ]7 @2 k: G2 V
- Serial.print("Connect WiFi");; L6 W7 M8 R2 M2 `/ p
- while (WiFiMulti.run() != WL_CONNECTED) {$ v/ i5 K- g+ P3 W7 K, q; ]# V! }
- digitalWrite(2,0);6 \/ p! q+ @: j& p" x: f
- delay(200);) A& M3 U% k' p6 z3 ]
- digitalWrite(2,1);
t" c/ q/ d; K: t* P - delay(300);
9 |, W' j; S M" y - Serial.print(".");
g7 S) e0 l1 m% O. r - tryNum--;
" L3 O( [" N( v; r/ D6 M - if (tryNum == 0) {
; t4 c" c' ]2 [* X) V) o - // 1min
5 j* Y0 a3 W* |0 y - // ESP.deepSleep(60e6);
9 g3 m$ Y- g' J s, I# c" d) c( \ - ESP.deepSleep(0);
- \0 \4 {- B. B - }9 L# W7 s. u; h
- }
: F$ h. h7 E. i: }5 |! F - Serial.print("\r\n");
) x, O" @) l8 q - digitalWrite(2,1);
! n" [ _3 p) p! ? - Serial.print("IP address : ");" R3 c; }, C" v- l0 A+ W
- Serial.println(WiFi.localIP());( ^( A. g; `1 h" e5 ?0 y
- server.on("/", HTTP_GET, [](){+ {4 ?* N! R) w- h- ~
- server.sendHeader("Connection", "close"); _& A, E1 i7 q
- server.send(200, "text/html", serverIndex);# A% N( P# a0 o7 w. d" b
- }); |& s( k8 f$ A N& Z
- server.on("/update", HTTP_POST, [](){4 p8 {$ A" C, Z+ k* L" _4 e
- server.sendHeader("Connection", "close");% i* x" ^1 r E5 Z% v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
5 {- U1 D2 i+ b& h0 h* a4 Y - ESP.restart();
. N4 `) E7 ?- H& x5 W% q3 f# A - },[](){. `* H% x5 O' s6 a; V% S8 s0 S
- HTTPUpload& upload = server.upload();$ @( m/ O4 p1 B/ B: T/ c* r' j. @7 E
- if(upload.status == UPLOAD_FILE_START){
5 u5 C: g+ d# H3 A9 T( ^+ g v, B8 \ - Serial.setDebugOutput(true);# b0 X& j5 o" r# Z+ e
- Serial.printf("Update: %s\n", upload.filename.c_str());( _) H% j+ A& _, O
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 u; E6 }3 u6 |5 U
- if(!Update.begin(maxSketchSpace)){8 g# e5 q" I( K5 C# x& n
- Update.printError(Serial);1 U* z% `7 i3 e
- }* m9 P2 h% H2 q) Z5 _4 m+ x& q l
- } else if(upload.status == UPLOAD_FILE_WRITE){
' K- i) G, v' T - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! g; n, L# d& ^$ a# N1 v
- Update.printError(Serial);5 c& R! u; R& j' S, V
- }( ^% U6 z7 w5 U4 k
- } else if(upload.status == UPLOAD_FILE_END){+ o3 X. V% V5 I y; N) U7 t; E
- if(Update.end(true)){
0 N3 R/ g4 l1 Z# ^5 }' g! M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* y5 M& E0 ?% l
- } else {
4 e4 G3 M) E0 c1 t - Update.printError(Serial);
6 N" i% `0 l ^; n0 ^ - }4 b- N' X9 v0 V C/ Q
- Serial.setDebugOutput(false);
! ~) T3 M) E& ^5 y/ w8 z$ C - }
- |8 `9 q( Y( Q( D0 w n+ { - yield();
0 }# l+ \( p/ ], S7 t& y, U+ [$ I7 h - });; b; ^$ v. q/ F
-
1 x. n( x4 E* N! w( R z - digitalWrite(2,0);4 f% x+ L1 ^/ k. ?
- mainAction();
8 q6 Q- z5 x( I2 y5 J' T: c: n - if (digitalRead(0)){0 r# o# [7 P6 C! O0 V# F9 |/ Q
- ESP.deepSleep(0);
0 d* T+ n1 S6 V7 z+ o8 a6 h - } else {# }# N# P$ z( @7 l
- server.begin();. `, I0 n3 S" K3 V9 j4 O
- }
1 E$ W6 N# r/ M* l) e, k" G0 r - }
4 \5 `9 \9 g y4 P( W7 z - void loop() {& y! S \7 H; a: [
- server.handleClient();
, z+ t& I0 L+ e* B) O7 p - delay(1);5 g6 T5 H0 [! x( x: s/ |- u
- }
; R6 ^7 E. x2 I; T* s - String doGet(String url){
4 @: m3 r. f4 e' S0 b+ U - if ((WiFiMulti.run() == WL_CONNECTED)) {# V" G$ b' z& e( t9 ?2 q0 z* S
- HTTPClient http;" f5 B) ^$ @" k2 X |0 l0 ^, F
- Serial.println("[HTTP] begin...");" Q; n8 I; n7 B+ j
- if (url.startsWith("https")) {. s- H% V4 Y+ c7 n
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) P2 h- c" R5 u L3 K - } else {
2 i7 K2 `# N/ L" |/ K' S - http.begin(url);
4 L) O, j# X9 @4 A& j - }
M( g0 `; F- S. ?! H; H - Serial.println("[HTTP] GET...");& s) \$ _& \6 W+ J8 |
- int httpCode = http.GET();
! p0 s* d/ {2 Y: O3 [7 R2 G# H5 L - if (httpCode > 0) {0 n3 L* `/ e0 j
- Serial.printf("[HTTP] code: %d\n", httpCode);
) ~: ~- [4 }) Y. U4 d% w! w - if (httpCode == HTTP_CODE_OK) {
3 a9 M4 v" N1 o8 x9 v% e0 g - String payload = http.getString();. @: p$ n* U4 h
- Serial.println(payload);" J# }1 t8 g0 ~7 x7 ]! Z' z' b
- Serial.print("\r\n");
3 s7 @0 F! X$ K, p1 q) v$ ~- p. a+ | - return payload;
$ X6 W% Y1 O' e' p" j. ]$ K - }, T: Z1 v+ A' h& Q* W: Y
- } else {7 L/ K. I, ?3 T& P/ U) g4 C
- Serial.printf("[HTTP] GET... failed, error: %s\n",
3 Y, ]1 l: x2 {% O6 m) H - http.errorToString(httpCode).c_str());
+ F" s5 j. U. o9 S+ s+ z - }7 J* r. q: u7 {( L+ I
- http.end();
! z1 r2 u- L8 Y. J5 j p! N - return "";
4 ~ @4 C0 i3 F8 q2 K, M; J - }
( S8 l0 y0 n2 S7 L, t# { - }
4 e& e) u& |1 Y$ B2 Y# c - void mainAction() {" I; _. ` E* `: @% Q1 y) X
- // 发送请求
# ], j: E! ^( M4 d& r - doGet("http://google.cn");5 G3 y$ e: w9 e$ r* X$ |# u# c
- }
) b# I; ?; S, {9 ] z z! _
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