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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)
. N8 A7 D3 j5 P/ x- #include <ESP8266HTTPClient.h>0 A4 {6 z6 o/ { K6 W! B$ h1 f
- #include <ESP8266WiFi.h>0 C5 J r+ e# C: Y% }% Y
- #include <ESP8266WiFiMulti.h>
$ ^6 G5 C* T: `9 z! h+ @* U - #include <ESP8266WebServer.h>8 T5 j1 g8 \& B3 @1 }; m3 `
- #include <arduino.h>
6 ^* b, i+ S5 |8 S7 J0 W! | - ESP8266WiFiMulti WiFiMulti;
% o; G" t0 ~) j; J- s, ~- l* Q - ESP8266WebServer server(80);8 ]7 s* I' Y& g" r: f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ L- r; L" R5 e( D
- ADC_MODE(ADC_VCC);
/ c) a2 f2 b* G, \ u/ o' [+ H - void setup() {
% i' C1 ]( m" k* t( i$ k# g. f- X - Serial.begin(115200);
4 x+ k5 F% r' |# T# C k+ q/ I# R - Serial.print("\r\n\n");: k s8 o# Y* ?( ^$ X: Z$ o! l" G
- pinMode(2,OUTPUT);! W( y. L$ F& n6 w* |
- // WIFI
* D$ i# g1 _5 |6 T0 h( q _ - WiFi.mode(WIFI_STA);2 w& ]+ v6 O1 [; [6 j, d
- WiFi.hostname("Sparkle");# r. r* o* d( E2 ]0 @1 c0 `2 f( h1 [
- WiFiMulti.addAP("wifi ssid", "wifi password");
' `: V( g% s, F g3 R - int tryNum = 15;* @. q+ A3 [% X( l* r7 }
- Serial.print("Connect WiFi");4 e( B( ~& G; D2 A' l0 x" b4 b4 Q* Y
- while (WiFiMulti.run() != WL_CONNECTED) { O3 _6 _9 \0 m
- digitalWrite(2,0);
3 `# g7 W7 ]' ~4 x# e; e6 E - delay(200);
7 x6 H- Y0 _' G: _7 t0 y0 l, F0 Z/ L - digitalWrite(2,1);6 v# E9 x. J6 J3 Z8 J7 s: S( m( J
- delay(300);) t/ k" F& C/ f+ V4 x
- Serial.print(".");* Y; M6 G9 F7 D. I( Z( H
- tryNum--;' S S9 {. b8 k$ g2 q+ F
- if (tryNum == 0) {
* p0 u* \) T5 y" }: q4 Z5 h* x - // 1min. W) m# C& U1 v$ c/ Z
- // ESP.deepSleep(60e6);
- c- q6 o9 ]4 u! O; t% h - ESP.deepSleep(0);& _6 B% |' ~0 |( d% V4 f
- }& I0 b8 d9 S; O: W/ ^
- }
5 Z3 R' C6 C, b; R, D - Serial.print("\r\n");* ^4 n) f: l1 V
- digitalWrite(2,1);% |) c, E7 Q: {3 X: z
- Serial.print("IP address : ");/ h8 _/ N- ^5 W0 ?7 C
- Serial.println(WiFi.localIP());
1 r6 t, [' f) \, h$ m$ r - server.on("/", HTTP_GET, [](){
9 a) e8 i% q9 M: z8 d) Q - server.sendHeader("Connection", "close");
- x2 p" Y# n, w5 M" U- { - server.send(200, "text/html", serverIndex);
( u% V# H0 N. S* B - });
6 V$ T: n g0 O0 E6 I( H8 B - server.on("/update", HTTP_POST, [](){
* f/ B+ w2 S1 P" |+ U - server.sendHeader("Connection", "close");
$ X1 b# j6 Q2 K1 H0 T' U1 D - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 T2 z- K- [6 H% I - ESP.restart();
8 t/ G9 }+ y. W8 Y+ m6 M* q - },[](){
. T+ U- i2 A2 f9 x6 ^8 V% V - HTTPUpload& upload = server.upload();9 s6 ?# }9 M/ g3 s# W" E* \" z9 r( E- `
- if(upload.status == UPLOAD_FILE_START){) x5 I* O0 w1 o0 O4 r" C
- Serial.setDebugOutput(true);; q/ N* W3 f7 m' \ X
- Serial.printf("Update: %s\n", upload.filename.c_str());
/ L5 F0 S' m2 M5 S - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! K; m7 U) M$ s; r1 l* y
- if(!Update.begin(maxSketchSpace)){
( T- ?) v v: s, ? - Update.printError(Serial);
% {! N7 T$ k" j* m( |! o8 f- t2 o; e - }
' g/ @1 t* |2 I3 ^6 O9 o8 k - } else if(upload.status == UPLOAD_FILE_WRITE){; s6 x' p; ^0 c5 u2 C
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- m8 l9 _& h& b# [
- Update.printError(Serial);5 u' B- I2 ?0 N: v, g; k
- }
! ~' d5 l) M) I$ I( h9 B% J3 k - } else if(upload.status == UPLOAD_FILE_END){
" n' H5 R! w# x! S9 K9 m1 u5 N - if(Update.end(true)){
; @6 @' x/ d7 x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. y, a' [' P) ~ - } else {
* @ F* U: Y6 T! | - Update.printError(Serial);
/ Z# {9 \0 ~+ e& {7 L0 x - }7 Z2 n! q6 X4 R
- Serial.setDebugOutput(false);# z/ I8 R) \# j6 e5 T) ]. f
- }
- j) ]3 Y3 M [% L6 W - yield();
4 g& V4 ?, M, m - });3 V1 u5 ^. t+ a2 ]( d
-
1 X( q J+ l" D; k) Z - digitalWrite(2,0);% }% j2 e% @; O
- mainAction();
7 P0 L# n4 ?6 C" | - if (digitalRead(0)){+ ^1 Z* l9 V$ J/ j
- ESP.deepSleep(0);
8 n* \4 w) a) b# p1 d9 k* d - } else {
9 J4 c3 }. E9 j - server.begin();3 g- P ?9 |! N+ a
- }
2 L6 \7 [' y* f0 D# y+ q - }! R5 @( Z% K/ ?3 A( D% n
- void loop() {, j, J4 Q- i6 b) U9 H" Q0 Q7 a y
- server.handleClient();6 ~0 D( u3 X' q1 o0 S- j& c0 [
- delay(1);. ^3 Y2 _* Y3 N8 p' N3 C2 w/ v
- }4 e% F: O3 X8 o5 q. [6 _2 P
- String doGet(String url){
% K' l1 t" R1 K5 Q - if ((WiFiMulti.run() == WL_CONNECTED)) {
u9 Y) B3 _2 k4 E/ X - HTTPClient http;9 x2 h* ]+ X) `2 j& e: F* Z5 u
- Serial.println("[HTTP] begin...");
! n% _) h8 {3 S# ^ I9 S - if (url.startsWith("https")) {
4 O8 t) \7 w( L3 ] - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! o" h' v0 V, Y& P) A' D" C
- } else {; ^/ _' I$ K- f! Y, T, u8 Q" }
- http.begin(url);
, |* A( b1 j4 O2 \5 j v! l/ y( R - }
% o: \8 v \, N/ u8 B3 E" c2 `9 B! ?0 R - Serial.println("[HTTP] GET...");8 A, O" t4 s6 V" j2 o
- int httpCode = http.GET();
/ q) q2 f/ u8 t( G1 d' _ - if (httpCode > 0) {9 |6 V x) B k: W( j7 I9 i t% J
- Serial.printf("[HTTP] code: %d\n", httpCode);2 ^, ~. t. B& k Q2 I
- if (httpCode == HTTP_CODE_OK) {% h: ]) k" r; b0 C
- String payload = http.getString();
2 x2 g' T/ P0 [ - Serial.println(payload);
' K& s1 Y% @+ S2 g - Serial.print("\r\n");
6 E5 X* U9 h+ p+ f9 c- {6 c - return payload;$ ~; S' K% g1 x9 M- F$ @
- }9 ?% g$ i7 Z9 K
- } else {2 ~0 W4 s7 ~8 F+ S7 q
- Serial.printf("[HTTP] GET... failed, error: %s\n",
( k9 V" a8 V' X, {# x g% J- ^/ e - http.errorToString(httpCode).c_str());
8 M$ ^5 @& x- |, j7 t+ J - }( V" }/ j7 y) R9 `' t8 m2 k
- http.end();# p h$ T% W8 u% M
- return "";: e9 Z: N+ I4 @% W H
- }
- ^9 Q p8 t( L f - }
5 a% d) H0 Q$ s" Y+ ?1 M - void mainAction() {6 i7 W9 t# U; R9 N6 }
- // 发送请求
2 Z1 p2 Z+ L8 C4 v - doGet("http://google.cn");4 a3 d0 I) P4 a; }7 s& O
- }+ r0 K/ @9 E% E7 M) F3 i& g8 E. f6 M
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