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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)
- G% {: V0 o0 o1 M: N# m ?) q& i- #include <ESP8266HTTPClient.h>
2 d. ?1 F: \7 m7 j( s - #include <ESP8266WiFi.h>. r3 X! w7 c. ~1 \' f4 P7 t% D
- #include <ESP8266WiFiMulti.h>5 j) W* F# F; Y+ m' r# X
- #include <ESP8266WebServer.h>
, }- e8 {% G! @ S! C" Y - #include <arduino.h>
) F1 b0 [" v) i - ESP8266WiFiMulti WiFiMulti;, T0 d! Y1 J2 D
- ESP8266WebServer server(80);
) i. G. x6 J" m; i9 B O' x; D - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, A- a4 K! H3 w- ^* ~6 ? - ADC_MODE(ADC_VCC);
. }# Z" g G, l3 l) N - void setup() {
9 n) F: B$ f: V0 Q: ?6 v - Serial.begin(115200);4 i/ k( A2 W) E2 `3 s
- Serial.print("\r\n\n");+ B8 w6 O" O' ?; j
- pinMode(2,OUTPUT);7 s% \; s, p! @: H0 g1 C6 W4 D9 A
- // WIFI. y; f3 h. h7 F! j; o# Z! b
- WiFi.mode(WIFI_STA);
& G6 t+ @! n$ c+ H G" q4 t - WiFi.hostname("Sparkle");( x N' h2 W) }$ ^/ c( d* S
- WiFiMulti.addAP("wifi ssid", "wifi password");
# X) n4 E8 S/ s5 g" k - int tryNum = 15;! V+ s8 U) E7 z5 [7 ]5 g
- Serial.print("Connect WiFi");! Q) ?( A$ g- y+ o1 {9 y
- while (WiFiMulti.run() != WL_CONNECTED) {- A. o4 e( ?% T& o* ?1 O
- digitalWrite(2,0);
5 o: Z, O7 a1 n0 r: A - delay(200);1 x# R2 ~4 G" Z9 W
- digitalWrite(2,1);
* ]; M; b; E5 C2 q1 O - delay(300);
' _4 \/ L! z( R k% A - Serial.print(".");
3 J& m5 h" f+ y5 K; D' d - tryNum--;- D- [' ]( A5 t, a1 z0 u$ ~
- if (tryNum == 0) {
9 n% W) x4 T8 e& ?$ L6 Z# ~% g1 o - // 1min
2 d+ x) W7 y5 r4 a: o - // ESP.deepSleep(60e6);$ j: t0 D( c! s( x% c! Y
- ESP.deepSleep(0);
! X3 x! [# Y# @5 i1 B- D2 X; o - }5 `2 P3 U; W' U3 ?6 U& D. @4 Z
- }
" T0 B0 n1 k* l6 i/ d3 Y% I - Serial.print("\r\n");
1 M5 h- }& I L/ | - digitalWrite(2,1);- H! j4 c9 l1 k: V6 ?) d1 I5 s" I
- Serial.print("IP address : ");& I, C- ^+ j; S( z# x2 u& i
- Serial.println(WiFi.localIP());
+ {0 G3 G6 O5 u# L( ]/ k/ l) T v6 o - server.on("/", HTTP_GET, [](){
7 X* a' p( I- M2 K9 } - server.sendHeader("Connection", "close");
) ]* O6 W; i. r - server.send(200, "text/html", serverIndex);- e$ G6 N+ E( Y" Y1 Y* z
- });
, ~& X K: j0 l( A3 M - server.on("/update", HTTP_POST, [](){1 h0 t, o+ ^+ S
- server.sendHeader("Connection", "close");
7 r5 m% X H I - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 e! [' \/ v4 u6 N2 u! D - ESP.restart();
$ n$ C7 w" g; s - },[](){, w4 q* R8 }( a! B, s5 E
- HTTPUpload& upload = server.upload();* g) ~% H5 i% _
- if(upload.status == UPLOAD_FILE_START){3 m) N: d7 W% `1 o* L: N3 ?
- Serial.setDebugOutput(true);
# I, [; _- r& T- a5 H - Serial.printf("Update: %s\n", upload.filename.c_str());, J$ \0 t! D! ~
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: }5 y1 F5 u* o
- if(!Update.begin(maxSketchSpace)){, l# T! @- ~/ i" f# x2 Y
- Update.printError(Serial);5 {4 o/ d/ k, L: C6 K
- }
4 F' ^7 T0 t2 z+ ^$ z8 L$ Z - } else if(upload.status == UPLOAD_FILE_WRITE){
, r- \3 ^$ X# Y2 m6 P; k( Q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 s) K( ]( i# f' |/ N
- Update.printError(Serial);
) E0 o& _$ L1 j& N - }7 L8 ?% ?! x1 z2 V( @! b& I2 y1 h
- } else if(upload.status == UPLOAD_FILE_END){+ }. S9 p+ ^. K9 C
- if(Update.end(true)){
( u9 \& L; n8 k8 ^& u! I - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 f" p8 }9 ?: h0 v: U0 R
- } else {2 J- }3 e$ V8 Z% u8 s
- Update.printError(Serial);
- {6 \% q9 T3 M) u8 C9 {% U+ y) o - }
4 ~4 i0 P1 o2 E - Serial.setDebugOutput(false);
: S, c! @7 |5 N2 t- L - }
8 N* c+ U" j7 s - yield();! m6 W& g$ n% b1 P% X4 c! [$ I* p* L
- });4 X4 Q. i# v9 i
-
, Z/ }. O. _8 g2 j1 Z# i; [ - digitalWrite(2,0);& {3 h7 `! m% l2 Q5 M' F
- mainAction();
0 o* K5 m6 ~) t6 Y - if (digitalRead(0)){' }. v, B; n4 h$ \
- ESP.deepSleep(0);
1 s8 E5 r; w6 A1 g - } else {
k1 ]1 I% j, j. F - server.begin();' M; p7 G1 Y: N5 l& z& k7 t
- }
. J/ }$ z4 U+ @3 W7 ~ - }1 w& q8 N0 r9 k- t; R. X
- void loop() {8 Z( H$ d* L: }, _( S" y, I; D
- server.handleClient();
; d) C1 C/ H; ~% q. [ - delay(1);& ^3 Y, X5 J' \; H0 g
- }6 S; B! M- I/ @
- String doGet(String url){
- l$ c% r" Q! {, D+ e8 t( {) Q - if ((WiFiMulti.run() == WL_CONNECTED)) {+ r" P/ [0 m; }7 T! u8 a
- HTTPClient http;% I5 _$ t3 v. g/ y( U6 D( O
- Serial.println("[HTTP] begin...");
, @$ s% {7 y4 k4 D8 m' m - if (url.startsWith("https")) {2 _2 w5 o; C, i4 m: K5 v. U4 m
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( S4 G( i* z3 m* s" i% }4 d
- } else {
2 z( W# I: t( \$ R6 b" U' u - http.begin(url);: K! w) u y! A8 O. _. u- H
- }
# C( i; [4 {3 e }4 j - Serial.println("[HTTP] GET...");/ |( ?" y9 p7 r3 f5 O! s. t4 i
- int httpCode = http.GET();8 S1 A; j! \0 n6 J
- if (httpCode > 0) {5 } U6 v7 S5 p: B% `' V+ A5 n
- Serial.printf("[HTTP] code: %d\n", httpCode);
+ A7 L! m% R( |0 j1 N6 i - if (httpCode == HTTP_CODE_OK) {
; Z) r+ t5 g2 V2 k - String payload = http.getString();8 ^/ N7 `7 Y# s: {; O" p' I
- Serial.println(payload);' P1 S9 d2 U5 K, d8 O1 t3 L9 H
- Serial.print("\r\n");( g- s. f9 m3 d+ T$ q
- return payload;
0 O5 m; c* ]: E0 o5 ^3 ^+ f - }
( y6 _7 Q# ?2 a3 \' P - } else {3 o6 ^; b8 F, D" z& o8 D. H$ v
- Serial.printf("[HTTP] GET... failed, error: %s\n",( i, m) @& n1 \0 s$ q
- http.errorToString(httpCode).c_str());
, G( U8 m& P5 l( W9 R8 z- c - }
. a2 h7 e! y. Q& P - http.end(); c b; Q F. r9 u0 t$ R
- return "";; A$ W) p" ?6 Q6 ^* ^
- }9 [5 Y# n& K2 h! W# b, u. x g# S1 Q
- }# J3 _% u w" D. q7 _
- void mainAction() {
" h7 H Z% W( R; S( i, M - // 发送请求6 @7 Q8 x" B. d. ]
- doGet("http://google.cn");% n+ Q: Q6 _% X$ v2 ?7 z( M7 d% Y
- }
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