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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)
9 Y+ O$ H$ W: g! G+ {' ]- #include <ESP8266HTTPClient.h>) @+ z9 x( f4 K" N- k- B: X
- #include <ESP8266WiFi.h>/ m( ^4 C9 _2 v8 k
- #include <ESP8266WiFiMulti.h>
, k* O/ J& ~* s2 f! P/ C6 V7 y - #include <ESP8266WebServer.h>
8 |0 `8 {" _3 v2 G$ ` - #include <arduino.h>$ C! Z1 i- W0 a
- ESP8266WiFiMulti WiFiMulti;
1 q2 |" m8 I- ]; N( b' M - ESP8266WebServer server(80);
- C$ Z3 M( Q; d, q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, U& \9 h# ^' b1 _ M9 y( f7 x6 v - ADC_MODE(ADC_VCC);
9 J2 B8 \/ t0 V9 x( ]( g - void setup() {8 u/ x2 m3 K; U' p
- Serial.begin(115200);4 P/ C0 \, V+ Y$ c( I. g
- Serial.print("\r\n\n");
+ X. T D; G; h/ F6 K - pinMode(2,OUTPUT);
/ p5 G. }: ?6 ~0 T- c( G - // WIFI
3 x X6 O0 ~. {% U - WiFi.mode(WIFI_STA);: d0 T" v3 D4 \( y
- WiFi.hostname("Sparkle");' _7 Q) u+ B6 W9 n0 S- j( \& w: A
- WiFiMulti.addAP("wifi ssid", "wifi password");
4 o# ?3 w4 D1 n8 j2 u. _8 L( g - int tryNum = 15;
8 s, Z" d) a; Y- t - Serial.print("Connect WiFi");
2 L! d1 X$ @2 A$ J/ u - while (WiFiMulti.run() != WL_CONNECTED) {$ I# ^2 x% Q% R' A" V
- digitalWrite(2,0);
' _0 F" S& p% c6 U e - delay(200);; Q0 h% h0 T5 z: |3 r) m
- digitalWrite(2,1);# B+ w7 S: }# p8 `: a/ L
- delay(300);
1 z5 L# q+ ~% D Q1 L" a - Serial.print(".");
' }2 r% f% x* G# e# D - tryNum--;
5 ^! c/ s1 A7 h7 D4 H - if (tryNum == 0) {- h9 `, T+ b+ S+ F
- // 1min
1 m3 c# N0 G `, s I9 r) V - // ESP.deepSleep(60e6);
4 R, c% J/ J( @ - ESP.deepSleep(0);
9 `3 j6 h- R# T2 Z; K& } - }
' V5 C0 f3 Q* c: y t9 ~- y: M" M# e" D3 d - }
& g9 f) e7 r/ t# x - Serial.print("\r\n");9 A2 w0 ]8 G) A- O' a
- digitalWrite(2,1);
0 m/ o8 ~! o) Z- X) f3 P - Serial.print("IP address : ");
7 r0 ?' |+ U2 I& ?3 `; J8 p6 g - Serial.println(WiFi.localIP());7 N% K" U: y% |+ v2 u
- server.on("/", HTTP_GET, [](){ R' I2 q5 M2 Q; H( M: |% |
- server.sendHeader("Connection", "close");
! ?% b# Q) i' \/ v% u1 E - server.send(200, "text/html", serverIndex);* \ n4 ]3 {! }% e; B( U
- });8 s8 b: P4 E, P
- server.on("/update", HTTP_POST, [](){. F3 S6 O& x' c0 J
- server.sendHeader("Connection", "close");
9 e0 h7 }3 Q+ q0 [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! G7 ? t+ ]" q; M4 t6 L - ESP.restart();
' y$ j% O$ p1 j7 { |8 n - },[](){
3 P8 b$ [0 V! w* e) V, i7 l" y - HTTPUpload& upload = server.upload();
. y% e8 ^4 ~- V! F. k) [; Z - if(upload.status == UPLOAD_FILE_START){
) d5 }: @/ Q4 p8 \' I3 y) L - Serial.setDebugOutput(true);% v6 A" o( }* Q4 h8 h* X
- Serial.printf("Update: %s\n", upload.filename.c_str());
! q: Y V5 ^& s9 y/ d& G0 p - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. O& u9 W" W3 d% `9 ~ - if(!Update.begin(maxSketchSpace)){/ D4 k2 `; o5 }- d# Y" |
- Update.printError(Serial);+ n* {! `. R$ f/ i' X* a; I
- }, U& c5 O& S( r6 `5 g
- } else if(upload.status == UPLOAD_FILE_WRITE){7 x- L; K; {, y6 [% l( [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){2 ?7 \4 R4 w0 b5 U
- Update.printError(Serial);/ J' N4 G: k" f7 |) t
- }
r$ F/ @8 W F; k* u# q - } else if(upload.status == UPLOAD_FILE_END){
4 E5 g. B$ r7 N2 a% ~8 _8 a - if(Update.end(true)){5 U2 x% W6 q9 J g8 [5 r, Q4 f
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 I2 S% M+ v2 h7 ^) o+ e
- } else {' L, w8 ]8 R4 Y) H, h n- `* X
- Update.printError(Serial);! m6 e1 j7 S, }; y9 b- g: N q# L9 B
- }
$ K: q& G& Z! Q2 ? - Serial.setDebugOutput(false);. ]. T" Z/ j6 G5 P2 @9 \
- }
% d0 J% m2 ~1 N$ d - yield();
2 m' q8 E; y0 ~5 H: } - });# y( e0 \2 s9 ~
- 8 D4 i5 I: x. ~0 L) D# D
- digitalWrite(2,0);+ H2 A& O J& a) I- b1 i! M
- mainAction();0 m2 y; J* k4 T6 v" K& a
- if (digitalRead(0)){7 E3 g. G" X5 W( d# L4 `
- ESP.deepSleep(0);; z( Z( V: _: }6 {
- } else {" K2 a/ ^" o+ @
- server.begin();
6 k7 [& f+ F$ t3 I' j0 F: q7 g - }
* Q* R) W/ h- S. a - }
* E2 @! ]1 [5 b7 M - void loop() {
) D& J& ]7 ?5 f$ T" H. I/ a - server.handleClient();# d0 w4 W7 {8 n* b3 W/ n
- delay(1);
6 m" M4 D9 C, C' t& _/ J - }
- Q$ c6 V) _' b2 Y+ z/ v& S - String doGet(String url){" R$ _' ~" W3 x
- if ((WiFiMulti.run() == WL_CONNECTED)) {7 x# _) b$ v2 i; M8 `8 R) N* X7 _! y
- HTTPClient http;8 X( g% }6 |; u
- Serial.println("[HTTP] begin...");
, w$ Z. n* a* z$ h - if (url.startsWith("https")) {) t- R0 G% {$ X5 ~* ~
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 E% g& R- P( h* f( k& X; m! v9 p
- } else {4 p8 A" p4 ]$ B2 R& ~1 o% t
- http.begin(url);) b+ J3 i8 `. Y
- }
+ M# m$ E$ M1 R. T3 J - Serial.println("[HTTP] GET...");
8 }8 g7 R' b7 W* u - int httpCode = http.GET();4 p; d. c7 c$ s) V/ | N
- if (httpCode > 0) {
6 N+ |8 H! W+ h. W' ~ - Serial.printf("[HTTP] code: %d\n", httpCode);
( N! K5 k; f7 f; F - if (httpCode == HTTP_CODE_OK) {
, q) o+ e# c* `2 ?: o - String payload = http.getString();* E, u. ^6 V# S( Q' P$ P/ _
- Serial.println(payload);9 R3 [1 b+ i: V! c( ~4 z
- Serial.print("\r\n");
" Q3 |* S( ~- w( U2 u7 D - return payload;( I5 D4 z2 \, E0 ]( G6 x+ _
- }
& ~' i, B; P [% {) p - } else {) `, _* \4 k: a- Z. b
- Serial.printf("[HTTP] GET... failed, error: %s\n",
4 r' K# G5 Z1 ^+ J$ R, d2 K - http.errorToString(httpCode).c_str());% U" ^1 l3 g* J; J
- }8 @* s/ H5 E W% o R6 l
- http.end();+ n. F3 K9 ?9 i) Y
- return "";( i7 U r+ \/ z0 L- F
- }; _+ R2 y1 G0 O' |! [
- }
6 w0 J4 n: Y* c - void mainAction() {
9 j$ i+ N& S5 e) {% L1 R - // 发送请求
# H- I U. D+ o/ j0 e" s0 [. R - doGet("http://google.cn");
9 n; W* W. D) E( E$ r, @ I - }) Y9 \* k- _; u, h
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