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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)' }7 n: u* G4 ^' g8 v U
- #include <ESP8266HTTPClient.h>: N o; J6 l: C: D; Q% ^
- #include <ESP8266WiFi.h>
( O9 ] m- t% Z4 \1 w3 n - #include <ESP8266WiFiMulti.h>* s/ a/ v) i% u! S
- #include <ESP8266WebServer.h>8 }( H) ^) R" Z; C& S) W
- #include <arduino.h>
" b t2 o/ m0 c T- U, L8 f a, ~- {6 ^ - ESP8266WiFiMulti WiFiMulti;% h1 ]; X& o3 m# H# b' b
- ESP8266WebServer server(80);. [& `. ?: z' u: U
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 S% r3 f) s; ?2 u. j9 h6 \ - ADC_MODE(ADC_VCC);6 O& J: _* s5 H
- void setup() {
* s2 ^. }# M+ p - Serial.begin(115200);
% A" s# }* k5 O" n) F) ? - Serial.print("\r\n\n");
7 n3 ~' x1 I J2 I( ` - pinMode(2,OUTPUT);
0 A2 z# r z. ^! U9 w/ e, d - // WIFI
+ k1 y3 ~2 a% Q0 l - WiFi.mode(WIFI_STA); m% ^3 l! l0 x
- WiFi.hostname("Sparkle");
5 U% c. C9 M; [, _" b4 ~ - WiFiMulti.addAP("wifi ssid", "wifi password");5 e% k) b4 G1 I5 v3 D
- int tryNum = 15;
; R# y0 {; ~* W, Z% Q4 V - Serial.print("Connect WiFi");
% p! E% b) @: B$ T/ C - while (WiFiMulti.run() != WL_CONNECTED) {
# N; A B: C. Q - digitalWrite(2,0);
6 ?8 U" O+ F U: q, H0 ?, h - delay(200);& ?# U& R# ^2 C( h
- digitalWrite(2,1);
" c# z: m% d- l3 X9 J. D6 | - delay(300);2 a- B/ s( p/ w6 M
- Serial.print(".");) t8 e/ Q+ x! r8 T, z
- tryNum--;
( Z/ \9 J& v# k4 l- G/ C7 ]# ] - if (tryNum == 0) {
) l3 S- c6 [% t - // 1min
0 P& ~! `5 |5 }, n+ n7 j$ {4 t - // ESP.deepSleep(60e6);
# G5 A. }- f5 R. j0 ~ v9 i - ESP.deepSleep(0);% h4 x7 y. V# |# R; e0 N7 Z
- }
7 y$ Z' \: {8 A" u- j' L1 Q9 | - }
# j8 q+ c' U: u. N( W5 ^ - Serial.print("\r\n");
. M& V4 p- \6 V( Z - digitalWrite(2,1);
2 L2 P! q3 | v( K Z% Y2 p - Serial.print("IP address : ");7 |3 Z6 J% @+ x( ` u+ N1 n
- Serial.println(WiFi.localIP());
! e* j* ^9 {; E% `, Q- C" @ - server.on("/", HTTP_GET, [](){
- g/ t: h9 o& ] - server.sendHeader("Connection", "close");
8 S& S* \/ v, g/ R - server.send(200, "text/html", serverIndex);+ ]$ O( C" i M, u
- });
7 m# b8 `6 ?0 k# |/ _. w$ M - server.on("/update", HTTP_POST, [](){7 ^, O# Q# H+ H7 h; d4 d
- server.sendHeader("Connection", "close");
2 U+ v& H( H& j9 m5 i - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% W( |) A- A9 d* i/ K; T - ESP.restart();' o3 r1 _9 y! _8 ~# W8 q
- },[](){
$ Z* _9 w9 Z% ?# f - HTTPUpload& upload = server.upload();, x! d0 }$ n$ I8 J# u$ K e
- if(upload.status == UPLOAD_FILE_START){
% S& w! i1 L8 F8 q - Serial.setDebugOutput(true);% K C; }9 n* c( z' ~
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ I6 K; h/ f; S - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: b2 a0 P2 Z( r: ]
- if(!Update.begin(maxSketchSpace)){
% \3 m. Q, H& V1 M9 t - Update.printError(Serial);) o9 A6 Q. v' \8 V1 G R
- }, T! }8 R& C0 Q7 u# A! g
- } else if(upload.status == UPLOAD_FILE_WRITE){
$ @) i/ C1 ]4 [6 A! d' P6 m - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
! r( {0 b; c- Y5 u - Update.printError(Serial);
8 ^$ M$ }9 \9 O - }
1 x* |5 a: l1 B4 p3 y - } else if(upload.status == UPLOAD_FILE_END){5 G/ s' ]7 J/ m5 z
- if(Update.end(true)){& H! ?) h7 o, c% ?# |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 ^& u |1 d* B [) R$ s
- } else {
% Z$ q, q6 l0 F0 e: r7 x! w+ S: c - Update.printError(Serial);
. O. _' O8 V; i" ?% d - }
/ f- ~# d M. W' r0 k, E - Serial.setDebugOutput(false);+ }, z w: ?: Y
- }
9 o0 {7 S3 w; @' h8 p - yield();
7 {. @* ~& q, I( K- N t( @) {; ` - });8 U6 `; f2 C i* g$ _; ?
- # z! b# ^4 q# |6 y( N/ r
- digitalWrite(2,0);
4 M: B/ I2 ^' J+ o) B3 J - mainAction();
0 c) Q# N1 \/ W- n% r% m - if (digitalRead(0)){. o% S2 a2 u- g! f8 W5 N# r4 R+ T+ y
- ESP.deepSleep(0);
2 T/ V& H9 p' S6 m3 T1 ^ - } else {7 b1 G7 d% S% n+ ^! p9 W; S% k6 o1 d
- server.begin();: W/ l! T& {8 g: I8 \
- }
/ O: A( u0 l- ^7 z - }1 r" g: |/ p2 l, [
- void loop() {7 O% N& E6 D( W7 G; g0 Y
- server.handleClient();
X& U5 t/ b$ }: K - delay(1);
2 `# q$ a, ] {) |0 T - }+ G5 }: q9 o ]4 z
- String doGet(String url){; x9 P/ {. {7 T) `* q3 b# C. Z
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 r6 L g; D, \ m- A5 R - HTTPClient http;
: Z8 G7 X. f* i4 }+ D+ P - Serial.println("[HTTP] begin...");4 ^+ z. n# S+ R6 [+ Y, A
- if (url.startsWith("https")) {
8 b* M9 K0 \5 I' k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 @, }& i, E% b) z B* u2 v- i
- } else {7 k8 J, V/ R- r
- http.begin(url);; M: ]: {/ I% a4 v+ c- i
- } o4 L% q1 [2 m4 ?/ i, k' I& H
- Serial.println("[HTTP] GET...");8 o2 s( Z0 f* n* p1 R4 i% e+ ~" `
- int httpCode = http.GET();2 }* E5 K: N6 h1 k% ?
- if (httpCode > 0) {
( M. x. M8 t ?( r: b& o$ U) L - Serial.printf("[HTTP] code: %d\n", httpCode);- Q6 Z1 `0 ?+ i4 }% ?, p
- if (httpCode == HTTP_CODE_OK) {
9 f% y7 {. `5 i# n2 }. X$ x - String payload = http.getString();% l; P3 ~! W+ E6 s% G O$ O
- Serial.println(payload);
) ?) E3 O. H! F- C: g4 y. W - Serial.print("\r\n");
7 C6 q" q. }& h& j% V - return payload;1 G5 K4 ^( g5 g- C. y5 ]4 n
- }
: C* v8 [6 t. w# l/ j9 [# B - } else {; z+ H' |% Y- A; ?
- Serial.printf("[HTTP] GET... failed, error: %s\n",3 ~' M1 t9 S' X- \
- http.errorToString(httpCode).c_str());
' p- D; z, M9 }9 f# Y o - }3 {. w& X! C; X4 z5 o) Z
- http.end();
4 }( D9 B! ~/ h9 U1 y0 u ~ - return "";
3 c+ x; [6 f `) @) }. g - }
* z5 j! ]( K4 I/ O# V& f - }7 W! t7 j/ l+ {
- void mainAction() {
|3 @) v$ X) G- d3 y - // 发送请求) y9 g/ J+ F7 K7 u- W/ Q0 r9 ~
- doGet("http://google.cn");: e& k! ~. m. I4 N B/ m6 s. }
- }+ d h! V5 P9 B; Z L2 Y
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