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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)$ \( k% e$ v' I& |: ?
- #include <ESP8266HTTPClient.h>% b" g4 X q1 }2 O9 T5 R
- #include <ESP8266WiFi.h>& V# i: X$ t0 B# |7 Q! Q9 e: U
- #include <ESP8266WiFiMulti.h>+ N+ V& x" F4 D! j& p7 W! N! `) ^
- #include <ESP8266WebServer.h>
# Q7 {+ j$ {' Z: w! z - #include <arduino.h>
2 e4 n+ _: p- a* ~, x - ESP8266WiFiMulti WiFiMulti;
& U' f: J% s( N" W - ESP8266WebServer server(80);& g5 F! i7 y. {9 w( I- H; w; ^
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 F5 k/ v# ^8 w1 D( o - ADC_MODE(ADC_VCC);
/ p1 [: V! }+ h. m/ f - void setup() {
! O; O: Z' L7 }$ c/ U - Serial.begin(115200);, G0 ?- l& K' f) r' I
- Serial.print("\r\n\n");
5 K: R. N* ~' C0 f# X - pinMode(2,OUTPUT);
2 _+ A& D3 [7 m4 d! I - // WIFI+ {# B, M5 k7 I7 o3 @
- WiFi.mode(WIFI_STA);" E' q; ~) _- T) P/ Z
- WiFi.hostname("Sparkle");
% d1 @5 N/ x. E9 l6 ?3 A/ x - WiFiMulti.addAP("wifi ssid", "wifi password");
9 z8 I5 J& i1 x6 R5 ]# e - int tryNum = 15;1 f- O% n& E" y" r4 Z. ^
- Serial.print("Connect WiFi");
) z) J# B( ^% x - while (WiFiMulti.run() != WL_CONNECTED) {/ c% D2 T9 P" I
- digitalWrite(2,0); D/ Q$ \8 K% h6 Y5 y7 ]1 q
- delay(200);
/ y9 m3 s3 ~8 |# s - digitalWrite(2,1);! X A* G$ y6 F3 G
- delay(300);
6 ?& f. ]! [, r: o1 q. }5 H - Serial.print(".");
" k7 Q" |4 @4 J, f - tryNum--;
! |2 O' c; |- v3 n$ C - if (tryNum == 0) {2 G" }' N; x: F0 C1 J+ x8 J
- // 1min! b# \. Q S5 h& m4 O, z7 w
- // ESP.deepSleep(60e6);
4 Y- T: [# ~/ v+ Z7 W2 M - ESP.deepSleep(0);6 E$ g) m) o9 l$ R$ j# r
- }1 I/ x# B m+ |* s+ k
- }2 o/ g. e$ A! B0 g2 ]( o/ v
- Serial.print("\r\n");
9 P5 R: C+ O! U _ - digitalWrite(2,1);
# Y9 P) |3 B$ I$ H8 v - Serial.print("IP address : ");
& _: T& C9 d: z( X3 p2 G - Serial.println(WiFi.localIP());
+ z6 Q* y; Q) I. y' d/ e - server.on("/", HTTP_GET, [](){
% s$ [7 ~: b/ M - server.sendHeader("Connection", "close");! x ?! t7 M U
- server.send(200, "text/html", serverIndex);
% X. g" [0 Q5 j: P* s6 l6 b7 x - });
3 G9 O* l6 e$ {7 N) v8 l! n! ?' Z; A - server.on("/update", HTTP_POST, [](){% R6 q. m# |8 Y, s h3 z, @" Z
- server.sendHeader("Connection", "close");
' r4 N& y# b( N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' t( i7 Z, }0 ^7 \
- ESP.restart();
+ i9 ]' N. U) |; O3 l4 d0 n* q% H - },[](){
" f; `- ]/ K/ Y9 Z - HTTPUpload& upload = server.upload();6 u9 i3 q5 [ \( S8 ^
- if(upload.status == UPLOAD_FILE_START){
9 w0 b" V/ {# v - Serial.setDebugOutput(true);6 o9 C6 A# W/ [+ }4 ?
- Serial.printf("Update: %s\n", upload.filename.c_str());
" t; c1 s+ P0 h$ s" x7 z/ u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# h' w) d, Z1 y* \
- if(!Update.begin(maxSketchSpace)){1 G t& |- y) U) \4 \; g& [4 u7 {
- Update.printError(Serial);' A( B0 Q. O6 u4 t
- }
5 L3 M6 b5 ]0 G - } else if(upload.status == UPLOAD_FILE_WRITE){
- q9 I$ q% r, e2 x) y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){3 d' _1 M5 c5 b+ n# @1 r* f( t
- Update.printError(Serial);
( `$ k: T4 r4 a+ ]1 f8 s0 o8 f - }
; [' `5 F+ v& p. p - } else if(upload.status == UPLOAD_FILE_END){
- v7 j6 u/ c7 x5 S$ X/ C - if(Update.end(true)){$ J' V) i2 O8 I
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ ^' F3 U9 j! ], K# K# X: q
- } else {
+ k9 G) }8 s1 X3 L1 s - Update.printError(Serial);
9 O% X/ I, K8 W2 d: o+ g- ]' c - }
+ E( ?! C6 E5 l; m - Serial.setDebugOutput(false);
6 h h3 Q: p$ G: U, w - }
# Y4 M3 ~, M6 J3 Y( k - yield();
# a7 J! S% C0 o" ~6 G3 ? - });
5 h$ p4 i) m1 |, l; e) a4 @# i -
( d% j8 M5 O* s4 V8 _& E - digitalWrite(2,0);. P) H$ a" t# W1 p3 h3 p
- mainAction();8 C( x2 r& E- n
- if (digitalRead(0)){, ]2 d ^1 f) s8 X, Q
- ESP.deepSleep(0);
/ b) W1 k. X* q - } else {
& T# o: \5 ^: Q) s& ]) ^& n - server.begin();
( v2 {1 G5 k4 d - }
* ]1 V( Y! h8 [6 @ - }% m0 ]9 N2 j6 V. U( ^
- void loop() {
' Q* Q* T. O" r8 N$ ^. c - server.handleClient();
4 V. M9 \' X% S+ r1 \5 n - delay(1);2 H* B; z% U6 O
- }
- {; K x% g* F5 u" @0 o1 o - String doGet(String url){
z( l' M' P6 y/ c& G - if ((WiFiMulti.run() == WL_CONNECTED)) {3 D) W. T' N: C- O2 v
- HTTPClient http;
9 @+ c1 z; S" D. @& d# z - Serial.println("[HTTP] begin...");% L: z) J' g, U$ V3 q# y/ Z+ z
- if (url.startsWith("https")) {
4 H' I( R' G* K. ] - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ Q2 b2 p, d& H! ?/ _6 i e
- } else {6 f0 q/ }& f- s" o" Y7 C! y) s0 n' i
- http.begin(url);
. w7 e1 c9 z! Y9 l) x - }! y' S0 o* U( |) z' M
- Serial.println("[HTTP] GET...");$ @! P8 B- ]& X6 B& p0 J
- int httpCode = http.GET();( c8 j' S3 }. C6 R8 J, V# \
- if (httpCode > 0) {. W, @- \" A9 H( @
- Serial.printf("[HTTP] code: %d\n", httpCode);- m+ e# J" {& E1 {
- if (httpCode == HTTP_CODE_OK) {! J' u4 ^4 j& X
- String payload = http.getString();
# o- p7 H1 s5 b5 N9 t - Serial.println(payload);
4 K/ g) g, P3 j) c, C9 G3 Q - Serial.print("\r\n");' D7 n8 P+ X4 S( M$ |& i
- return payload;
, N3 _) q. v) m- C1 J. Y - }
2 _4 p. w2 B) T' z8 a - } else {
, \+ L; ~( L7 z# U - Serial.printf("[HTTP] GET... failed, error: %s\n",
: O$ {1 v& p8 _. ?5 { - http.errorToString(httpCode).c_str());0 P- h( Y5 [. ^- O7 R+ z
- }
8 V$ A f ~, I) ~; ^8 t& ^ - http.end();- v/ O, y+ |' t% g3 T# T
- return "";
7 A- B- j9 v+ \2 F - }, `, e; h, z' P! i; j9 u. o
- }' h' l$ E" n- _6 ]9 u- R3 z
- void mainAction() {
3 K/ ?, R7 Z# L" Y4 L3 E - // 发送请求
% U8 y k- A6 I) [ - doGet("http://google.cn");
- U9 L6 T+ \6 h. t - }
% R) T! w7 A; i/ B
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